September is Library Card Sign-Up Month. The proclamation was signed by President George H.W. Bush in August 1989. Here’s one link to the law:
Proclamation 6008—National Library Card Sign-Up Month, 1989
For other sources of the law, you can search these keywords: library card sign up month Proclamation 6008, 103 STAT. 3075 (August 1989)
Excerpt: “By the authority vested in me as President by the Constitution and the laws of the United States of America, and in order to increase meaningful access to our legal system and an array of Federal programs, it is hereby ordered as follows: ….” [Link to the Memorandum at the Whitehouse website or Briefing Room or at the Federal Register (and eventually the CFR) website.]
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