Except as provided in subparagraph (B), the Commission may grant a waiver to any entity of any requirement under this section or an amendment made by this section with respect to a matter relating to byproduct material (as defined in paragraphs (3) and (4) of section
2014
(e) of this title) if the Commission determines that the waiver is in accordance with the protection of the public health and safety and the promotion of the common defense and security.