Component part
Component part means any part of a consumer product, including a children's product that either must or may be tested separately from a finished consumer product to assess the consumer product's ability to comply with a specific rule, ban, standard, or regulation enforced by the CPSC. Within the same consumer product, the component parts to be tested and the tests to be conducted may vary, depending on the applicable regulations and required test methods, if any.
Source
16 CFR § 1109.4
Scoping language
The following definitions apply to this part: