National Plumbing Fixtures Efficiency Act of 1988

National Plumbing Fixtures Efficiency Act of 1988 - Directs the Secretary of Commerce to establish water use performance standards for plumbing products classified as covered products. Requires such standards to be designed to achieve the maximum water efficiency which the Secretary determines is technologically feasible and economically justified.

Sets forth maximum water use standards for the following products: (1) water closets; (2) urinals; (3) showerheads; and (4) faucets. Requires the Secretary to prescribe water use standards for the following products which are manufactured or sold on or after January 1, 1992: (1) drinking fountains; (2) lawn sprinklers; (3) clothes washers; (4) dishwashers; (5) water cooled air conditioning systems and associated cooling equipment; and (6) decorative water fountains. Directs the Secretary to prescribe water use standards for any product that is classified as a covered product and manufactured and sold on or after the date that is three years after such product receives its classification.

Describes the procedure for prescribing water use standards. Directs the Secretary to reevaluate such standards at the end of each five-year period after the date of enactment of this Act.

Requires the Secretary to prescribe test procedures for classified products.

Directs the Federal Trade Commission to prescribe labeling and marking rules for each classified product. Directs the Secretary to study the feasibility of determining coverage for additional consumer products.

Establishes a procedure for testing plumbing products and for maintaining test data.

Directs the National Institute of Standards and Technology to assist the Secretary as necessary.

Requires the Secretary of the Treasury to prescribe rules for any covered product offered for importation.

Sets forth provisions for prohibited acts, enforcement procedures, and the commencement of civil actions under this Act.

Declares that standards, procedures, or rules under this Act supersede State regulations.

Directs the Secretary of Commerce to establish an advisory committee to report annually to the Congress on the implementation of this Act by the Secretary and the Commission.

Directs the Secretary to report annually to the Congress and the President on activities under this Act.

Authorizes appropriations for FY 1989 through 1993.