On and after publication of this part in the Federal Register, the interpretations contained therein shall be in effect and shall remain in effect until they are modified, rescinded, or withdrawn. This part supersedes and replaces the interpretations previously published in the Federal Register and Code of Federal Regulations as part 779 of this chapter. Prior opinions, rulings and interpretations and prior enforcement policies which are not inconsistent with the interpretations in this part or with the Fair Labor Standards Act as amended by the Fair Labor Standards Amendments of 1961 are continued in effect; all other opinions, rulings, interpretations, and enforcement policies on the subjects discussed in the interpretations in this part are rescinded and withdrawn. The interpretations in this part provide statements of general principles applicable to the subjects discussed and illustrations of the application of these principles to situations that frequently arise. They do not and cannot refer specifically to every problem which may be met by retailers in the application of the Act. The omission to discuss a particular problem in this part or in interpretations supplementing it should not be taken to indicate the adoption of any position by the Secretary of Labor or the Administrator with respect to such problem or to constitute an administrative interpretation or practice or enforcement policy. Questions on matters not fully covered by this part may be addressed to the Administrator of the Wage and Hour Division, U.S. Department of Labor, Washington, DC 20210, or to any Regional or District Office of the Division.