| (a) The owner or operator shall limit volatile organic
compounds (VOC) emissions from all adhesives and adhesive primers
used during the specified application processes to the following VOC
content limits in pounds of VOC per gallon of adhesive (lb VOC/gal
adhesive) (minus water and exempt solvent compounds), as delivered
to the application system. These limits are based on the daily weighted
average of all adhesives or adhesive primers delivered to the application
system each day. If an adhesive or adhesive primer is used to bond
dissimilar substrates together, then the applicable substrate category
with the least stringent VOC content limit applies. The requirements
in this subsection are replaced with the requirements in subsection
(e) of this section in the Dallas-Fort Worth area upon the compliance
date specified in §115.479(c) of this title (relating to Compliance
Schedules) or with the requirements in subsection (f) of this section
in the Houston-Galveston-Brazoria area upon the compliance date specified
in §115.479(d) of this title.
Attached Graphic
(1) The owner or operator shall meet the VOC content
limits in this subsection by using one of the following options.
(A) The owner or operator shall apply low-VOC adhesives
or adhesive primers.
(B) The owner or operator shall apply adhesives or
adhesive primers in combination with the operation of a vapor control
system.
(2) As an alternative to paragraph (1) of this subsection,
the owner or operator may operate a vapor control system capable of
achieving an overall control efficiency of 85% of the VOC emissions
from adhesives and adhesive primers. Control device and capture efficiency
testing must be performed in accordance with the testing requirements
in §115.475(3) and (4) of this title (relating to Approved Test
Methods and Testing Requirements). If the owner or operator complies
with the overall control efficiency option under this paragraph, then
the owner or operator is exempt from the application system requirements
of subsection (b) of this section.
(3) An owner or operator applying adhesives or adhesive
primers in combination with a vapor control system to meet the VOC
content limits in paragraph (1) of this subsection, shall use the
following equation to determine the minimum overall control efficiency
necessary to demonstrate equivalency. Control device and capture efficiency
testing must be performed in accordance with the testing requirements
in §115.475(3) and (4) of this title.
Attached Graphic
(b) The owner or operator of any application process
subject to this division shall not apply adhesives or adhesive primers
unless one of the following application systems is used:
(1) electrostatic spray;
(2) high-volume, low-pressure spray (HVLP);
(3) flow coat;
(4) roll coat or hand application, including non-spray
application methods similar to hand or mechanically powered caulking
gun, brush, or direct hand application;
(5) dip coat;
(6) airless spray;
(7) air-assisted airless spray; or
(8) other application system capable of achieving a
transfer efficiency equivalent to or better than that achieved by
HVLP spray. For the purpose of this requirement, the transfer efficiency
of HVLP spray is assumed to be 65%. The owner or operator shall demonstrate
that either the application system being used is equivalent to the
transfer efficiency of an HVLP spray or that the application system
being used has a transfer efficiency of at least 65%.
(c) The following work practices apply to the owner
or operator of each application process subject to this division.
(1) For the storage, mixing, and handling of all adhesives,
adhesive primers, thinners, and adhesive-related waste materials,
the owner or operator shall:
(A) store all VOC-containing adhesives, adhesive primers,
and process-related waste materials in closed containers;
(B) ensure that mixing and storage containers used
for VOC-containing adhesives, adhesive primers, and process-related
waste materials are kept closed at all times;
(C) minimize spills of VOC-containing adhesives, adhesive
primers, and process-related waste materials; and
(D) convey VOC-containing adhesives, adhesive primers,
and process-related waste materials from one location to another in
closed containers or pipes.
(2) For the storage, mixing, and handling of all surface
preparation materials and cleaning materials, the owner or operator
shall:
(A) store all VOC-containing cleaning materials and
used shop towels in closed containers;
(B) ensure that storage containers used for VOC-containing
cleaning materials are kept closed at all times except when depositing
or removing these materials;
(C) minimize spills of VOC-containing cleaning materials;
(D) convey VOC-containing cleaning materials from one
location to another in closed containers or pipes; and
(E) minimize VOC emissions from the cleaning of application,
storage, mixing, and conveying equipment by ensuring that equipment
cleaning is performed without atomizing the cleaning solvent and all
spent solvent is captured in closed containers.
(d) An application process that becomes subject to
subsection (a) of this section by exceeding the exemption limits in §115.471(a)
of this title (relating to Exemptions) is subject to the provisions
in subsection (a) of this section even if throughput or emissions
later fall below exemption limits unless emissions are maintained
at or below the controlled emissions level achieved while complying
with subsection (a) of this section and one of the following conditions
is met.
(1) The project that caused a throughput or emission
rate to fall below the exemption limits in §115.471(a) of this
title must be authorized by a permit, permit amendment, standard permit,
or permit by rule required by Chapters 106 or 116 of this title (relating
to Permits by Rule; and Control of Air Pollution by Permits for New
Construction or Modification, respectively). If a permit by rule is
available for the project, the owner or operator shall continue to
comply with subsection (a) of this section for 30 days after the filing
of documentation of compliance with that permit by rule.
(2) If authorization by permit, permit amendment, standard
permit, or permit by rule is not required for the project, the owner
or operator shall provide the executive director 30 days notice of
the project in writing.
(e) In accordance with the compliance schedule for
contingency requirements in §115.479(c) of this title in the
Dallas-Fort Worth area, the owner or operator shall apply low-VOC
adhesives or adhesive primers to limit VOC emissions from all adhesives
and adhesive primers used during the specified application processes
to the VOC content limits listed in the tables in this subsection
in grams of VOC per liter of adhesive (minus water and exempt solvent
compounds), as delivered to the application system. If an adhesive
or adhesive primer is used to bond dissimilar substrates together,
then the applicable substrate category with the least stringent VOC
content limit applies.
Attached Graphic
(f) In accordance with the compliance schedule for
contingency requirements in §115.479(d) of this title in the
Houston-Galveston-Brazoria area, the owner or operator shall apply
low-VOC adhesives or adhesive primers to limit VOC emissions from
all adhesives and adhesive primers used during the specified application
processes to the VOC content limits listed in the tables in this subsection
in grams of VOC per liter of adhesive (minus water and exempt solvent
compounds), as delivered to the application system. If an adhesive
or adhesive primer is used to bond dissimilar substrates together,
then the applicable substrate category with the least stringent VOC
content limit applies.
Attached Graphic
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| Source Note: The provisions of this §115.473 adopted to be effective December 29, 2011, 36 TexReg 8897; amended to be effective June 25, 2015, 40 TexReg 3907; amended to be effective May 16, 2024, 49 TexReg 3292; amended to be effective December 12, 2024, 49 TexReg 9978 |
