Depainting
Depainting means the removal of a permanent coating from the outer surface of an aerospace vehicle or component, whether by chemical or non-chemical means. For non-chemical means, this definition excludes hand and mechanical sanding, and any other non-chemical removal processes that do not involve blast media or other mechanisms that would result in airborne particle movement at high velocity.
Source
40 CFR § 63.742
Scoping language
Terms used in this subpart are defined in the Act, in subpart A of this part, or in this section as follows: