We may test any portable fuel container subject to the standards of this subpart.

(a) Certification and production sample testing. Upon our request, a manufacturer must supply a prototype container or a reasonable number of production samples to us for verification testing. These samples will generally be tested using the full test procedure of §59.653.

(b) In-use testing. We may test in-use containers using the test procedure of §59.653 without preconditioning.