How Special Observance Days Are Determined
The President of the United States has the authority to declare a commemorative event or day by proclamation. Fewer than 150 are granted in an average year across all categories.
Petitions are introduced by constituents, trade associations or public relations firms to honor industries, events, professions, hobbies, etc. The Senate issue commemorative resolutions which do not have the force of law.
Some state legislatures and governors proclaim special observance days, as do mayors of cities, which is why there can be a National Chocolate Day and a National Chocolate Month, as well as two National Guacamole Days–authorized at different levels of government.
After any observance day has been authorized, it is up to the petitioner to promote it to the public.
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