Page:United States Statutes at Large Volume 82.djvu/209

 82 STAT. ]

PUBLIC LAW 90-323-MAY 30, 1968

167

§501. Severability If a provision enacted by this Act is held invalid^ all valid provisions that are severable from the invalid provision remain in effect. If a provision enacted by this Act is held invalid in one or more of its applications, the provision remains in effect in all valid applications that are severable from the invalid application or applications. §502. Captions and catch lines for reference only Captions and catchlines are intended solely as aids to convenient reference, and no inference as to the legislative intent with respect to any provision enacted by this Act may be drawn from them. §503. Grammatical usages I n this Act: (1) The word "may'' is used to indicate that an action either is authorized or is permitted. (2) The word "shall" is used to indicate that an action is both authorized and required. (3) The phrase "may not" is used to indicate that an action is both unauthorized and forbidden. (4) Rules of law are stated in the indicative mood. §504. Effective dates (a) Except as otherwise specified, the provisions of this Act take effect upon enactment. (b) Chapters 2 and 3 of title I take effect on July 1, 1969. Ante. pp. 152 157. Ante, p. 162. (c) Title III takes effect on July 1, 1970. Approved May 29, 1968. Public Law 90-322 JOINT RESOLUTION To provide for the reappointment of Doctor Crawford H. Greenewalt as Citizen Regent of the Board of Regents of the Smithsonian Institution.

^^^ 3^ ^^^.3 [s.j. Res. 142]

Resolved by the Senate and House of Representatives of the United States of America in Congress assembled, That the vacancy in the stftution°"'^" ^" Board of Regents of the Smithsonian Institution, of the class other than Members of Congress, which w411 occur by the expiration of the term of Doctor Crawford H. Greenewalt, of Wilmington, Delaware, on April 6, 1968, be filled by the reappointment of the present incumbent for the statutory term of six years. Approved May 30, 1968.

Public Law 90-323 JOINT RESOLUTION May 30. 19.8 To provide for the reappointment of Doctor Caryl P. Haskins as Citizen Regent [s.j. Res. 143] of the Board of Regents of the Smithsonian Institution. Resolved by the Senate and House of Representatives of the United States of America in Congress ansembled. That the vacancy in the Board ot Kegents 01 the Smithsonian Institution, of the class other than Members of Congress, which will occur by the expiration of the term of Doctor Caryl P. Haskins, of Washington, District of Columbia, on April 6, 1968, be filled by the reappointment of the present incumbent for the statutory term of six years. Approved May 30, 1968. f\

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