OLEM DIRECTIVE 9200.1-162
U.S. Environmental Protection Agency
Technical Review Workgroup for Metals and Asbestos
Charter and Operating Principles

The Technical Review Workgroup (TRW) for Metals and Asbestos is an interoffice and
interagency workgroup composed of the lead, bioavailability and asbestos committees that are convened
by the Office of Superfund Remediation and Technology Innovation (OSRTI). The TRW's goal is to
develop, maintain, support and promote consistent application and improvement of the best science in the
field of human health risk assessment for asbestos, metals and bioavailability of soil and soil-like (e.g.,
floodplains) contaminants at affected sites nationwide. Although the TRW's (and this Charter's) primary
focus is on metals and asbestos, the TRW will support best science practices in risk assessment of other
types of contaminants when TRW experience is applicable, such as evaluating and developing exposure
parameters for human health risk assessments and methods for assessing bioavailability of contaminants
in soil.

TRW Roles and Responsibilities

•	Develop and/or assist in creating new risk assessment tools and guidance for asbestos, metals
and bioavailability of soil and soil-like (e.g., floodplains) contaminants.

•	Continuously refine, update and validate existing national technical guidance and tools (e.g.,
analytical methods, IEUBK) for metals, asbestos risk assessment and bioavailability of soil
and soil-like (e.g., floodplains) contaminants.

•	Coordinate with and provide technical expertise, consultation and reviews to assist other EPA
workgroups and committees (e.g., EPA Regions, workgroups, Office of Land and Emergency
Management (OLEM) Human Health Regional Risk Assessors other Agency offices,
OLEM/OSRTI, Agency for Toxic Substances and Disease Registry (ATSDR), the states,
tribes and non-government groups) with technical support for site risk assessments related to
asbestos, metals and bioavailability of soil contaminants by ensuring that personnel are
effectively applying the best available methods for site risk assessment.

•	Collect, disseminate and promote state-of-the-art approaches to asbestos, metals and
bioavailability of soil and soil-like (e.g., floodplains) contaminants risk assessment.

•	Promote and expand the best use of available scientific data for site (remedial or removal)
assessments related to asbestos, metals and bioavailability of soil contaminants.

•	Communicate to stakeholders, within and outside the Agency, EPA technical application of
the best available science concerning risk assessment methods for asbestos, metals and
bioavailability of soil contaminants.

•	Provide science policy recommendations to OSRTI management for consideration.

•	Advise OSRTI management on technical issues and concerns and represent the position of
OSRTI to other parts of the Agency.

•	Make recommendations for needed Office of Research and Development (ORD) research to
OSRTI management.

TRW Membership

Full Members

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The principal members of the TRW are technical staff from the EPA Regions, OSRTI, OLEM,
ORD, other EPA programs and invited members (e.g., state colleagues, tribes). TRW members have an
active interest and scientific expertise in risk assessment. Members are expected to attend regular
meetings called by the chairpersons and to actively contribute to the preparation of technical reviews and
other scientific TRW committee work products.

It is expected that the member's region or office would support his/her involvement in the TRW
with a commitment of 10-15 percent of his/her time. Membership on the TRW does not imply that the
member formally represents or is the spokesperson for the interests of his/her individual EPA region and
office.

Candidates are eligible for membership if they have expertise, engagement or interest in risk
assessment, particularly for asbestos, metals and bioavailability of soil contaminants. Members with
diverse technical backgrounds are welcome, as this would broaden the relevant topics the TRW
committees can address. Membership selection and nomination should seek to provide adequate
representation of the EPA headquarters offices and to reflect the interests of multiple EPA regions.

Nomination for full membership is by EPA offices, scientific peers, or through other informal
mechanisms. Selection for full membership is by the agreement of the TRW co-chairs and OSRTI
management, with the support of the candidate's supervisor.

Advisory Members

Due to the time requirements of serving on TRW committees, it is expected that interest in, and
availability for, active TRW membership will evolve. Long-standing full members who wish to continue
to receive information related to committee activities may assume an advisory role with the approval of
the co-chairs, thereby retaining historical perspective and expertise in the committee membership while
recognizing time limitations of staff. Advisory members do not vote on TRW products.

Ad Hoc Members

In addition, TRW committees may seek input from outside the Agency on technical projects. Full
membership in the TRW is primarily reserved for EPA employees, but ad hoc members may be recruited
from both non-federal organizations (such as academia, medical educators and clinicians, and consultants)
and other federal agencies (e.g., ATSDR/Centers for Disease Control and Prevention representatives,
National Institutes for Environmental Health Sciences representatives). The inclusion of these individuals
in workgroups, such as the TRW, is consistent with the partnership between EPA and these stakeholders.
The use of experts from outside the Agency for consultation on technical issues is consistent with the
Agency's goal to apply the best science available to risk assessment.

Agency members who do not have a science or engineering background may be included on the
TRW as ad hoc members and will serve at the discretion of the co-chairs, primarily to address specific
consultation needs. Ad hoc members may advise in areas of their expertise and participate in discussions
such as programmatic interests outside of OLEM or legal vulnerabilities. Generally, the ad hoc member
should raise any concerns to the TRW co-chairs. It is at the discretion of the co-chairs to raise these
concerns to the full committee.

These experts serve as ad hoc members and will be called upon to temporarily advise the
committee on specific issues as directed by the TRW committee. They serve in subcommittees that are
led by a TRW full member. Upon the completion of its task it is expected that the subcommittee will be
disbanded. Ad hoc members participate in subcommittee calls, but they will not vote on committee

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products, they may not receive drafts of all working documents or reviews, and will only participate in
committee calls upon invitation. The time requirements and duration of service for ad hoc members will
be determined on a case-by-case basis.

Associate Members

Nomination for associate membership is by EPA offices, scientific peers, or through other
informal mechanisms. Selection for associate membership is by the agreement of the TRW co-chairs and
OSRTI management, with the support of the candidate's supervisor. Associate members may be from
other EPA programs, other federal agencies and stakeholders, including ATSDR, state and tribal staff.

Associate members may be invited to participate in TRW committee calls and can lead
subcommittees as determined by the co-chairs with management concurrence. Associate members would
be involved as a collaborative member on a topic that relates to the mission of the stakeholder. The
associate member may only collaborate on technical issues and topics that are for informational purpose.
Associate members are generally not permitted to provide input on site consultations.

The co-chairs shall be sensitive to associate member participation during discussion of sensitive
matters, such as site enforcement, confidential matters, and EPA policy. Associate members do not
generally vote on TRW products; however, their vote may be requested by the co-chairs in certain
instances.

TRW Leadership

The leadership for TRW committees is provided by two (possibly three) co-chairpersons.

•	Chair 1: OSRTI management designates an OSRTI-based co-chair to ensure coordination on
scientific and policy issues with OSRTI management. The OSRTI co-chair is responsible for
monitoring the allocation of resources of the TRW including contract support.

•	Chair 2: Because the TRW committees strive for a balanced perspective on headquarters and
regional issues, a regional member will fill the second co-chair position.

•	Chair 3, if needed or desired: If more individuals from the committee are willing to serve in
addition to the two co-chairs, a third co-chair position may be filled by a full or associate
member from any EPA office, lab, or region.

Co-chairs direct the committee and provide leadership for the workgroup in guiding group
discussions, consulting with senior EPA managers, making presentations of workgroup findings and
maintaining motivation and active participation of the TRW membership. The co-chairs are responsible
for planning all teleconferences, meetings, workshops and other administrative matters. The co-chairs
may serve as equal participants in the leadership of the TRW, or rotate in a chair/vice chair capacity, if
they so elect. It is expected that each co-chair will have supervisory support for a commitment of
approximately 15-25 percent his/her time to the TRW. The co-chairs of the committee's vote, regardless
of their membership status (including associate members).

Generally, the co-chairs are selected from full or associate members. Their responsibilities as co-
chair supersedes those of the full or associate members. When needed, co-chairs oversee recusal of
member involvement in discussions. Co-chairs have the authority to excuse members at any time.

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Nominations/Selection of Co-chairs

Candidates for co-chairs are either self-nominated or peer-nominated. These nominations occur in
response to a co-chair's request to all eligible members that those interested in serving as co-chairs
express their interest in so doing. This request will be issued several months before a chairperson's term
expires. The response will be sent via e-mail, which will be kept confidential (if requested). In the event
that two or more members are nominated, the OSRTI co-chair is empowered to convene a panel of three
TRW members (who are not candidates) to recommend a chairperson to OSRTI management. OSRTI
management will make a selection from the nominees based upon the panel's recommendations.

Terms of Office

The terms of office for the co-chairs can be staggered, but, generally, should not exceed two
years. However, there is no requirement that a co-chair must step down at the two-year period's end.
Former co-chairs are eligible to serve again as co-chairs for a later term.

Role of OSRTI in the TRW

OSRTI provides the TRW's overall scope and direction, as well as providing the TRW's
administrative, contractual and logistical support. OSRTI designates a senior staff member to serve as a
co-chair. The TRW prepares for and presents to OSRTI management a calendar-year annual report of all
committees' activities and accomplishments. This report should be delivered at the beginning of the
calendar year; it documents the TRW's activities, and delineates the issues and concerns that the TRW
expects to address during the next year. Additional reports are supplied as requested. The co-chairs and
OSRTI senior management hold routine meetings to discuss progress on TRW projects and OSRTI
clearance of projects.

The TRW members' home offices are expected to fund travel expenses for regularly scheduled
face-to-face TRW meetings. OSRTI does not typically fund travel for members to committee meetings
unless it is for training purposes, then the hotel and per diem may be funded, with the regional members'
needs taking first priority. However, OSRTI will generally pay the TRW co-chairs' entire travel costs to
attend TRW annual (subject to resource availability). For relevant subject area conferences, it will be left
to the OSRTI Science Policy Branch (SPB) Chief s discretion, depending on the availability of funds, as
to whether OSRTI will cover the registration, hotel and per diem; regional members' needs take first
priority. Site-specific travel costs or travel to non-Superfund sites for consultation are expected to be
covered by the requesting office.

TRW Standard Operating Procedures

The TRW committees work primarily via teleconferences, video conferences or web
conferencing, which the chairpersons schedule via e-mail. The TRW also conducts face-to-face
committee meetings as needed to complete significant work products, to prepare for site
visits/consultations by reviewing data, to establish a work plan for the coming year, and to support
improvements to team functioning and building.

Requests for Technical Assistance and/or Site Consultations

All requests for support, assistance and review are submitted as proposals to the OSRTI TRW co-
chair who, in consultation with the other co-chair(s), distinguishes between requests that require only
deliberative recommendations and requests that may require formal site-specific document preparation

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(on TRW letterhead), which may entail literature searches, review of previous recommendations, input
from non-TRW individuals, and at least one round of review during a regularly scheduled committee
teleconference. The OSRTI co-chair advises the other co-chair(s) of the requests with recommendations
based on resource availability and the timing of the request.

In addition, a "fast track" mechanism for responses to focused and urgent requests for review of
risk assessment documents or issues is available. Fast track reviews are reserved for emergency or time-
sensitive situations that preclude following the "formal" review/comment process. The co-chairs institute
the fast track mechanism at their discretion whereby they initiate an "ad hoc, time-sensitive
subcommittee's" formation by way of a teleconference or e-mail request. Any fast track subcommittee
recommendations will be forwarded without full TRW committee review on a teleconference (though the
response will be on TRW letterhead if the comments are available for TRW review for at least five
business days) with a disclaimer that the recommendations were prepared by a subcommittee of the TRW.
In the event a request's timing does not permit five business days for TRW committee review of the
subcommittee's draft memorandum, individual comments will be submitted by TRW members and
comments are not provided on TRW letterhead.

The OSRTI co-chair monitors the TRW committee's workload and maintains and monitors the
schedule for documents' development and clearance. The TRW's goal is to issue deliberative
recommendations within six weeks, clear short memoranda in two weeks and complete white papers
within 12 weeks of initiation. In each case, the project is assigned to a single TRW member who outlines
the project's goals and the resource requirements needed (within and outside the Agency). This
information is communicated with the co-chairs who coordinate prioritization. In general, the TRW co-
chairs prioritize addressing issues and satisfying requests according to time, urgency, implications and
resources.

Responses to technical assistance and/or site consultation requests commence with a
subcommittee's formation, which should be composed of at least three-members. The subcommittee can
include non-TRW members, but the subcommittee leader (and primary author of the work products) must
be a TRW member. The subcommittee leader should work with the OSRTI co-chair to identify resource
requirements, including contractor support, and should coordinate with the region in which the site resides
(or the office from which the request was received if the request is not directly related to a particular site).
During work product development, the subcommittee leader should regularly update the TRW co-chairs
and should summarize the work product's key issues and progress at the next TRW meeting.

After the subcommittee drafts its report, it sends the report to the full TRW committee for review
(which will typically last two to four weeks, unless an expedited review [five business days] is requested).
Discussions of the full report are limited to two TRW meetings that need not be consecutive. Full TRW
committee consensus is expected after the initial review and discussion of comments. If a minority
opinion is drafted, it may, in consultation with OSRTI management, be sent to the requestor.

Development of Guidance Documents (White Papers, Technical Memoranda, Short Sheets, Guidance
Manuals, and Directives)

The co-chairs assess the need for additional guidance. General guidance documents are developed
based on need, in response to site requests or other inquiries. If they determine it is needed, they assign a
subcommittee. This newly-formed (led by the TRW representative but composed of experts from within
and outside the Agency as described above), develops a plan for guidance development. The co-chairs
determine and track the delivery target date, with periodic updates from the subcommittee leader. The full
TRW's review takes place after the report is drafted and the TRW has had an adequate period of time to

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review it (typically four to six weeks). The full report's clearance and discussion will be appropriate to the
guidance's scope as determined by the OSRTI co-chair in consultation with OSRTI management.

TRW Deliberations

Generally, the TRW intends to post on the TRW issue-specific website all final committee
documents (including site consultation memos) suitable for public release. However, the TRW retains the
discretion to not post certain documents on the Internet. In cases involving such information, it is the
requesting party's responsibility to notify the TRW in writing of this restriction at the time of the request.
The release of the document or material contained within the TRW report is then left to the requesting
office's discretion. In general, TRW members and those parties consulting with the TRW should assume
that any and all data submitted to the TRW will be made available to committee members, support
contractors and other interested EPA offices. In general, information the TRW reviews is subject to
FOIA. Data or information offered to the TRW that is expected to have a more restricted distribution than
stated above (e.g., proprietary, intellectual property) should be appropriately marked.

Recognizing that TRW discussions are potentially deliberative, all teleconference participants are
asked to identify themselves and their affiliation during roll call or when they join the teleconference (if
arriving late). Similarly, the teleconference agendas, any attachments and call-in information are not to be
distributed outside the TRW without the co-chairs' prior consent. This consent includes instances where
members request an alternate attend in their place. In addition, TRW members cannot invite non-members
to attend conference calls or meetings without prior co-chair consent.

The co-chairs may at their discretion utilize Robert's Rules of Order to facilitate discussion and
decision making. This process will enable the Committee, "with due regard for every member's opinion,
to arrive at the general will on the maximum number of questions of varying complexity in a minimum
amount of time and under all kinds of internal climate ranging from total harmony to hardened or
impassioned division of opinion"1 (see Attachment 1).

TRW Consensus Review

The TRW seeks to make recommendations on risk assessment issues based upon a consensus of
the TRW (see Attachment 2). If a member of group of members authored, co-authored, managed or co-
managed a document that is being reviewed, then they should disclose their role to the committee and
recuse themselves from the comment document or preparation of a technical memo. In general, members
will recuse themselves from voting on their own site-specific risk document. Despite their recusal, those
members may be consulted with technical questions or for clarification. Also, the TRW co-chairs may
allow those recused individuals editorial rights when appropriate. As with many scientific issues, full
consensus among the TRW reviewers is not always attainable. Where appropriate, committee reports
discuss the alternate scientific viewpoints considered and the basis for reaching the TRW's conclusions.
The following is the general process by which the TRW will operate for consensus:

•	On distribution of the first draft, reviewers choose one of three responses: a) no comments, b)
comment later, or c) send comments.

•	For subsequent revision, reviewers would have the option to; a) concur, b) concur with
comments, c) do not concur, or d) abstain.

•	The procedure for achieving consensus is a written (including e-mail or web poll) or voice
statement of; a) concur, b) concur with comments, c) do not concur, or d) abstain.

1 Robert, Henry M.; et al. (2011). Robert's Rules of Order Newly Revised (11th ed.). Philadelphia, PA: Da Capo
Press.

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•	Clearance requires a majority of those voting (not including those who have contacted the co-
chairs to abstain or those who have recused themselves from the discussion).

•	Lack of response by the deadline is considered to be a vote to abstain. Recused members
should abstain from voting; they may abstain with comments.

•	At the end of the voting period, concurrence voting is acceptable (achieves a quorum) when
two-thirds of the total committee's full member (including co-chairs) vote concur, concur
with comments or do not concur. If the minimum number of voting members is not met by
the deadline, the co-chairs may elect to contact members to remind them to vote or to
postpone the voting deadline for further discussion or consideration.

•	Issues that lead to non-concurrence would be discussed by e-mail or teleconference.

•	Consensus can be achieved even if every member is not fully satisfied with every element
that has been considered as long as there are not strongly held positions in opposition. In
addition, these members' alternative positions, who are not part of the majority, may be
shared with OSRTI management (where appropriate) in terms of where those individuals
agreed with the majority and where they disagreed.

•	No one member should have the right for last review.

•	When a subcommittee prepares the response, the subcommittee authors are generally
acknowledged in the memo or document.

•	Depending on the scope of the guidance, the subcommittee leader may request, in
consultation with the co-chairs, review and consultation from experts outside of EPA.

•	The OSRTI co-chair establishes a deadline for comments and ensures that adequate time for
discussion and voting is scheduled on a TRW teleconference or meeting.

•	For products that have an alternative position, at least one subsequent session (teleconference
or meeting time) will be scheduled to allow for rebuttal comments and corrections.

•	Following final TRW review, guidance documents will typically undergo the normal OSRTI
document review and release process. Additional reviews may be scheduled, as required. (See
OSRTI Management Review and Approval of TRW Work Products section below.)

•	Once the guidance is finalized, it will be posted on the TRW websites.

•	The TRW co-chairs may determine that a document requires further review and concurrence
by EPA program offices to ensure quality and consistency with program policy.

OSRTI Management Review and Approval of TRW Work Products

The OSRTI SPB Branch Chief will review TRW work products and will determine if work
products require additional OSRTI or OLEM management review. Any documents determined to have
significant policy implication(s) as well as the TRW annual reports, will be sent to the OSRTI Office
Director for review, approval and release. OSRTI's Assessment and Remediation Division director will
review, approve and release technical guidance documents. The SPB Chief will generally review, approve
and release technical reports. The manager providing final work product approval will distribute them to
the appropriate EPA offices for final review before online posting.

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Attachment 1. Roberts Rules of Order Cheat Sheet (http://www.diphi.web.unc.edu/files/2012/02/MSG-ROBERTS RULES CHEAT SHEET.pdf)

ROBERTS RULES CHEAT SHEET

To:

You say:

kiterrupt

Speaker

Second
Heeded

Dtebaiabte

Amendable

Vote

Adjourn

"I move tfiat we adjourn*

Mo

Yes

No

No

MRงปm

(Recess

"1 move that we recess untiL.."

No

Yes

No

Y'es



Corrplam about noise, room
temp. t etc.

"Point of privilege"

Yes

No

No

No

Chair
Decides

Suspend farther cxartsadcratkm of
SOmethlrip

"1 move thai we table it"

Mo

Yes

No

(to

Majority

End debate

*1 move the previous question*

No

Yes

No

Mo

2m

Postpone consideration of

something

"1 move we postpone this matter
until

No

Yti

Yes

Yes

Majority

Amend a motion

"*1 move that this fra#on be amended

by

Mo

Yes

Yes

Yes

Majority

Inkodmx business (a primary
motion)

iikmm..:

No

Yes

Yes

Yes

yapnty

The above listed motions and points are listed in established order of precedence. When any arte of them m pencfenB, you may riot introduce another that
is f isted below, but you may introduce another that is listed above ft.

To:

You say:

Interrupt
Speaker

Second

Needed

Debatable

Am-utaMe

Vote Needed

Qtjjeet Id prooedure or

Dereoosl affront

"Point of order"

Yes

No

No

No

Chair decides

Reauest information

'Point of information"

Yes

No

Ms

Mo

None

Ask far vote by actual count
to verify waiee vote

"1 call for a division of the house*

Must be done
before new
motion

No

Mo

No

None unless

someone

objects

Object to caresfcierwfli some
undiplomatic or improper
mater

"1 object to consideration of In
question*

Yes

No

No

Mo

2/3

Take up m^er previously

tabSed

*1 move we take from the table..."

Yes

Yes

No

No

Majority

Reconsider sonneHiing
stealif disposed of

"1 mow we now (or later) reconsider

our action relative to .."

Yes

Yes

Only if original
motion was
debatable

Mo

Majority

Consider something out: of its
scheduled outer

*1 mows we suspend the rules and

eonsHer...*

No

Yes

No

No

2/3

Vole or a niinn bv the Chair

"1 aooeel fie Chair's decision"

Yes

Yes

Yes

No

Makxfty

The motions, points and proposals listed above have no established order of preference; any of them may be introduced at any time except when r
is considering one of tfie top three matters feted from Hbe first dhart (Modern to Adjourn, Recess or Point of Privileged

Page 1 of 5

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Attachment 2: Types of Group Decisions

OSRTI recognizes there are a variety of alternatives to group decision making. The following four
alternatives were considered for use by the TRW committees. Consensus was selected as the best option
for the TRW Committees.

Unanimous agreement: All participants agree with the decision.

Simple Majority: More than half of the participants agree or are willing to accept the decision.

Consensus: All participants accept the decision even though they may not completely agree on the
specifics involved. All are willing to accept the decision for the good of the group.

Working Consensus: The decision is accepted by those participants whose cooperation is necessary to
implement the decision.

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