Quick search by citation:

2 U.S. Code § 658a - Exclusions

This part shall not apply to any provision in a bill, joint resolution, amendment, motion, or conference report before Congress that—
enforces constitutional rights of individuals;
establishes or enforces any statutory rights that prohibit discrimination on the basis of race, color, religion, sex, national origin, age, handicap, or disability;
requires compliance with accounting and auditing procedures with respect to grants or other money or property provided by the Federal Government;
provides for emergency assistance or relief at the request of any State, local, or tribal government or any official of a State, local, or tribal government;
is necessary for the national security or the ratification or implementation of international treaty obligations;
the President designates as emergency legislation and that the Congress so designates in statute; or
relates to the old-age, survivors, and disability insurance program under title II of the Social Security Act [42 U.S.C. 401 et seq.] (including taxes imposed by sections 3101(a) and 3111(a) of title 26 (relating to old-age, survivors, and disability insurance)).
Editorial Notes
References in Text

The Social Security Act, referred to in par. (7), is act Aug. 14, 1935, ch. 531, 49 Stat. 620. Title II of the Act is classified generally to subchapter II (§ 401 et seq.) of chapter 7 of Title 42, The Public Health and Welfare. For complete classification of this Act to the Code, see section 1305 of Title 42 and Tables.

Statutory Notes and Related Subsidiaries
Effective Date

Section effective Jan. 1, 1996, or on the date 90 days after appropriations are made available as authorized under section 1516 of this title, whichever is earlier, and applicable to legislation considered on and after such date, see section 110 of Pub. L. 104–4, set out as a note under section 1511 of this title.