40 CFR § 63.11416 - What are the standards for new and existing sources?
(a) If you own or operate a slabstock flexible polyurethane foam production affected source, you must meet the requirements in paragraph (b) of this section. If you own or operate a molded foam affected source, you must meet the requirements in paragraph (c) of this section. If you own or operate a rebond foam affected source, you must meet the requirements in paragraph (d) of this section. If you own or operate a flexible polyurethane foam fabrication affected source, you must meet the requirements in paragraph (e) of this section.
(b) If you own or operate a new or existing slabstock polyurethane foam production affected source, you must not use any material containing methylene chloride for any purpose in any slabstock flexible foam production process.
(c) If you own or operate a new or existing molded foam affected source, you must comply with the requirements in paragraphs (c)(1) and (2) of this section.
(1) You must not use a material containing methylene chloride as an equipment cleaner to flush the mixhead or use a material containing methylene chloride elsewhere as an equipment cleaner in a molded flexible polyurethane foam process.
(2) You must not use a mold release agent containing methylene chloride in a molded flexible polyurethane foam process.
(d) If you own or operate a new or existing rebond foam affected source, you must comply with the requirements in paragraphs (d)(1) and (2) of this section.
(1) You must not use a material containing methylene chloride as an equipment cleaner in a rebond foam process.
(2) You must not use a mold release agent containing methylene chloride in a rebond foam process.
(e) If you own or operate a new or existing flexible polyurethane foam fabrication affected source, you must not use any adhesive containing methylene chloride in a flexible polyurethane foam fabrication process.
(f) You may demonstrate compliance with the requirements in paragraphs (b) through (e) of this section using adhesive usage records, Material Safety Data Sheets, and engineering calculations.