Glass Production

A EPA

Final Rule: Mandatory Reporting of Greenhouse Gases

United States
Environmental Protection
Agency

Under the Mandator}! Reporting of Greenhouse Gases (GHGs) rule, owners or operators of facilities that
contain glass production processes (as defined below) and that emit 25,000 metric tons or more of GHGs
per year (expressed as carbon dioxide equivalents) from glass production processes, stationary
combustion, miscellaneous use of carbonates, and other source categories (see information sheet on
General Provisions) must report emissions from all source categories located at the facility for which
emission calculation methods are defined in the rule. Owners or operators are required to collect
emission data; calculate GHG emissions; and follow the specified procedures for quality assurance,
missing data, recordkeeping, and reporting.

How Is This Source Category Defined?

The glass production source category consists of facilities that manufacture glass (including flat,
container, or pressed and blown glass) or wool fiberglass using one or more continuous glass melting
furnaces. Experimental furnaces and research and development process units are excluded.

Glass production facilities must report the following:

•	Carbon dioxide (C02) process emissions from each continuous glass melting furnace.

•	C02 combustion emissions from each continuous glass melting furnace.

•	Methane (CH4) and nitrous oxide (N20) emissions from fuel combustion at each continuous glass
melting furnace. Report these emissions under 40 CFRpart 98, subpart C (General Stationary
Fuel Combustion Sources). The information sheet on General Stationary Fuel Combustion
Sources summarizes the rule requirements for calculating and reporting emissions from these
units.

•	C02, CH4, and N20 emissions from each onsite stationary fuel combustion unit other than
continuous glass melting furnaces under 40 CFR part 98, subpart C (General Stationary
Combustion Sources).

In addition, each facility must report GHG emissions for any other source categories for which calculation
methods are provided in other subparts of the rule.

For C02 emissions from glass melting furnaces, the rule requires facilities to use one of two methods, as
appropriate:

•	For glass melting furnaces with certain types of continuous emission monitoring systems (CEMS)
in place, facilities must report combined process and combustion C02 emissions using the CEMS
in accordance with the Tier 4 calculation methodology of 40 CFRpart 98, subpart C.

•	For other glass melting furnaces, the reporter can elect to use one of two methods:

o Install and operate a CEMS and follow Tier 4 methodology to measure combined process

and combustion C02 emissions,
o Calculate process C02 emissions for each furnace using a default emission factor
appropriate for the carbonate raw material multiplied by:

¦ The annual mass of carbonate-based raw material charged to the furnace
(required to be measured).

What GHGs Must Be Reported?

How Must GHG Emissions Be Calculated?

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¦	The mass-fraction of carbonate in the raw material (based on data supplied by the
raw material supplier and verified by an annual measurement).

¦	The fraction of calcination achieved for each carbonate-based raw material if a
value other than 1.0 is used.

For CH4 and N20 emissions from glass melting furnaces, owners or operators must follow the

requirements of 40 CFRpart 98, subpart C.

A checklist for data that must be monitored is available at:

www.epa.gov/climatechange/emissions/downloads/checklists/glassproduction.pdf.

When Must Reports be Submitted?

The submission date for the annual GHG report can vary in the first 3 years of the program.

•	Reporting Year 2010. The report was required to be submitted by September 30, 2011.

•	Reporting Year 2011. The due date depends on which source categories are included in the
report. If the report includes one or more of the source categories listed below, then the report
must be submitted by September 28, 2012. This reporting deadline applies to all subparts being
reported by the facility. In addition, if the facility contains one or more of these source categories
and the facility submitted a GHG annual report for reporting year 2010 under another subpart
(e.g., subpart C for general stationary fuel combustion), then by April 2, 2012 you must notify
EPA through e-GGRT that you are not required to submit the second annual report until
September 28, 2012 (the notification deadline according to 4 CFR 98.3(b) is March 31, 2012,
however, because this date falls on a Saturday in 2012, the notification is due on the next business
day).

o Electronics Manufacturing (subpart I)
o Fluorinated Gas Production (subpart L)
o Magnesium Production (subpart T)
o Petroleum and Natural Gas Systems (subpart W
o Use of Electric Transmission and Distribution Equipment (subpart DD)
o Underground Coal Mines (subpart FF)
o Industrial Wastewater Treatment (subpart II)
o Geologic Sequestration of Carbon Dioxide (subpart RR)
o Manufacture of Electric Transmission and Distribution (subpart SS)
o Industrial Waste Landfills (subpart TT)
o Injection of Carbon Dioxide (subpart UU)

o Imports and Exports of Equipment Pre-charged with Fluorinated GHGs or Containing
Fluorinated GHGs in Closed-cell Foams (subpart QQ)

If the report contains none of the source categories listed above, then the report must be submitted
by April 2, 2012 (the deadline is March 31, 2012, however, because this date falls on a Saturday,
the annual report is due on the next business day).

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•	Reporting Year 2012. Starting in 2013 and each year thereafter, the report must be submitted by
March 31 of each year, unless the 31st is a Saturday, Sunday, or federal holiday, in which case
the reports are due on the next business day.

What Information Must Be Reported?

In addition to the information required by the General Provisions at 40 CFR 98.3(c), the rule requires
each glass manufacturing facility to report the following information:

If a CEMS is used to measure C02 emissions, then under this subpart the relevant information required
for the CEMS by subpart C (General Stationary Fuel Combustion Sources) and the information listed
below must be reported:

•	Annual quantity of each carbonate-based raw material charged to each continuous glass melting
furnace and for all furnaces combined (tons)

•	Annual quantity of glass produced for each continuous glass melting furnace and for all furnaces
combined (tons).

If a CEMS is not used to determine C02 emissions from continuous glass melting furnaces, then the
following information must be reported for each continuous glass melting furnace:

•	Annual process emissions of C02 for each continuous glass melting furnace and for all furnaces
combined (metric tons).

•	Annual quantity of each carbonate-based raw material charged (tons) to each continuous glass
melting furnace and for all furnaces combined.

•	Annual quantity of glass produced (tons) from each continuous glass melting furnace and for all
furnaces combined.

•	Carbonate-based mineral mass fraction (percentage, expressed as a decimal) for each carbonate-
based raw material charged.

•	Results of all tests used to verify the carbonate-based mineral mass fraction for each carbonate-
based raw material charged, as specified in 40 CFR 98.146(b)(5).

•	The fraction of calcination achieved (percentage, expressed as a decimal) for each carbonate-
based raw material, if a value other than 1.0 is used to calculate process mass emissions of C02.

•	Method used to determine fraction of calcination (percentage, expressed as a decimal).

•	Number of continuous glass melting furnaces.

EPA has temporarily deferred the requirement to report data elements in the above list that are used as
inputs to emission equations (76 FR 53057, August 25, 2011). For the current status of reporting
requirements, including the list of data elements that are considered to be inputs to emissions equations,
consult the following link: http://www.epa.gov/climatechange/emissions/CBI.html

For More Information

This document is provided solely for informational purposes. It does not provide legal advice, have
legally binding effect, or expressly or implicitly create, expand, or limit any legal rights, obligations,
responsibilities, expectations, or benefits in regard to any person. The series of information sheets is
intended to assist reporting facilities/owners in understanding key provisions of the final rule.

Visit EPA's Web site (www.epa.gov/climatechange/emissions/ghgrulemaking.html) for more
information, including the final preamble and rule, additional information sheets on specific industries,
the schedule for training sessions, and other documents and tools. For questions that cannot be answered
through the Web site, please contact us at: GHGreporting@epa.gov.

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