Maximum achievable control technology standards
(a) Maximum achievable control technology (MACT) standards. (1) The provisions of this subpart pertaining to the MACT standards in 63.562(b) and (d) of this subpart are applicable to existing and new sources with emissions of 10 or 25 tons, as that term is defined in 63.561, except as specified in paragraph (d) of this section, and are applicable to new sources with emissions less than 10 and 25 tons, as that term is defined in 63.561, except as specified in paragraph (d) of this section. (2) Existing sources with emissions less than 10 and 25 tons are not subject to the emissions standards in 63.562(b) and (d). (3) The recordkeeping requirements of 63.567(j)(4) and the emission estimation requirements of 63.565(l) apply to existing sources with emissions less than 10 and 25 tons. (4) Existing sources with emissions less than 10 and 25 tons must meet the submerged fill standards of 46 CFR 153.282.