Nonwater-resistant leather
Nonwater-resistant leather means nonupholstery leather that is not treated with any type of waterproof finish and, thus, cannot withstand 5,000 Maeser Flexes with a Maeser Flex Testing Machine or a method approved by the Administrator prior to initial water penetration. This leather is typically used for dress shoes, handbags, and garments.
Source
40 CFR § 63.5460
Scoping language
Terms used in this subpart are defined in the Clean Air Act, 63.2, and in this section as follows: