Except as provided by subsection (b), on and after January 1, 2009, a general service incandescent lamp shall not be purchased or installed in a Coast Guard facility by or on behalf of the Coast Guard.
A general service incandescent lamp may be purchased, installed, and used in a Coast Guard facility whenever the application of a general service incandescent lamp is-
(1) necessary due to purpose or design, including medical, security, and industrial applications;
(2) reasonable due to the architectural or historical value of a light fixture installed before January 1, 2009; or
(3) the Commandant of the Coast Guard determines that operational requirements necessitate the use of a general service incandescent lamp.
In this section, the term "facility" does not include a vessel or aircraft of the Coast Guard.
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Section effective on the date that is 1 day after Dec. 19, 2007, see section 1601 of