Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024
All TitlesTitle 40Chapter IPart 63Subpart IIAppendix - Table 2 to Subpart II of Part 63—Volatile Organic HAP (VOHAP) Limits for Marine Coatings
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Appendix - Table 2 to Subpart II of Part 63—Volatile Organic HAP (VOHAP) Limits for Marine Coatings
Coating category VOHAP limits a b c
Grams/liter coating (minus water and exempt compounds) Grams/liter solids d
t ≥4.5 °C t <4.5 °C e
General use340571728
Specialty:
Air flask340571728
Antenna5301,439
Antifoulant400765971
Heat resistant4208411,069
High-gloss4208411,069
High-temperature5001,2371,597
Inorganic zinc high-build340571728
Military exterior340571728
Mist6102,235
Navigational aids5501,597
Nonskid340571728
Nuclear4208411,069
Organic zinc360630802
Pretreatment wash primer78011,095
Repair and maint. of thermoplastics5501,597
Rubber camouflage340571728
Sealant for thermal spray aluminum6102,235
Special marking4901,178
Specialty interior340571728
Tack coat6102,235
Undersea weapons systems340571728
Weld-through precon. primer6502,885

a The limits are expressed in two sets of equivalent units. Either set of limits may be used for the compliance procedure described in § 63.785(c)(1), but only the limits expressed in units of g/L solids (nonvolatiles) shall be used for the compliance procedures described § 63.785(c) (2) through (4).

b VOC (including exempt compounds listed as HAP) shall be used as a surrogate for VOHAP for those compliance procedures described in § 63.785(c) (1) through (3).

c To convert from g/L to lb/gal, multiply by (3.785 L/gal)(1/453.6 lb/g) or 1/120. For compliance purposes, metric units define the standards.

d VOHAP limits expressed in units of mass of VOHAP per volume of solids were derived from the VOHAP limits expressed in units of mass of VOHAP per volume of coating assuming the coatings contain no water or exempt compounds and that the volumes of all components within a coating are additive.

e These limits apply during cold-weather time periods, as defined in § 63.782. Cold-weather allowances are not given to coatings in categories that permit less than 40 percent volume solids (nonvolatiles). Such coatings are subject to the same limits regardless of weather conditions.

[60 FR 64336, Dec. 15, 1995, as amended at 61 FR 66228, Dec. 17, 1996; 76 FR 72070, Nov. 21, 2011]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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