Why do I need to submit a Method 27 - Vapor Tightness Certification for our Trailers?
Method 27: Required by the EPA - Federal Regulations
Tank trucks and railcars. The owner or operator shall load HAP-containing materials only into tank trucks and railcars that meet the requirement in paragraph (d)(1) or (2) of this section and shall maintain the records specified in paragraph (i) of this section.
(1) Have a current certification in accordance with the U.S. Department of Transportation (DOT) pressure test requirements of 49 CFR part 180 for tank trucks and 49 CFR 173.31 for railcars; or
(2) Have been demonstrated to be vapor-tight within the preceding 12 months as determined by the procedures in paragraph (h) of this section. Vapor-tight means that the pressure in a truck or railcar tank will not drop more than 750 pascals within 5 minutes after it is pressurized to a minimum of 4,500 pascals.
(h) Vapor tightness procedures. For the purposes of demonstrating vapor tightness to determine compliance with paragraph (d)(2) of this section, the procedures and equipment specified in paragraphs (h)(1) and (2) shall be used.
(1) The pressure test procedures specified in Method 27 of appendix A to 40 CFR part 60.
(2) A pressure measurement device that has a precision of ±2.5 millimeters of mercury or better and that is capable of measuring above the pressure at which the tank truck or railcar is to be tested for vapor tightness.
https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-63/subpart-YY/section-63.1105#p-63.1105(h)
Blank Method 27 forms are available in the Trailer Compliance are of Swift Dispatch - Trailer Compliance - New Trailer - icon next to Upload Required Documents