43 C.F.R. § 12.810 Policy.
Title 43 - Public Lands: Interior
(a) The Buy American Act requires that only domestic construction materials be used in construction in the United States, except when— (1) The cost would be unreasonable as determined in accordance with §12.815; (2) The head of the grantee organization or a designee at a level no lower than the grantee's designated awarding official determines that use of a particular domestic construction material would be impracticable; or (3) The head of the grantee organization or a designee at a level no lower than the grantee's designated awarding official determines the construction material is not mined, produced, or manufactured in the United States in sufficient and reasonably available commercial quantities of a satisfactory quality (see §12.720). (b) When it is determined for any reasons stated in this section that certain foreign construction materials may be used, the excepted materials shall be listed in the agreement. Findings justifying the exception shall be available for public inspection.
Title 43: Public Lands: Interior
PART 12—ADMINISTRATIVE AND AUDIT REQUIREMENTS AND COST PRINCIPLES FOR ASSISTANCE PROGRAMS
Subpart E—Buy American Requirements for Assistance Programs
Buy American Act—Construction Materials
§ 12.810 Policy.