EXECUTIVE ORDER NO. 581

: The main purpose of Executive Order No. 581 is to revise Annex A of Executive Order No. 471 dated August 24, 1951, by placing tetanus anti-toxin in 10,000 and 20,000-unit vials under the completely decontrolled category.
: The order specifically addresses tetanus anti-toxin in 10,000 and 20,000-unit vials.
: Placing tetanus anti-toxin under the "completely decontrolled" category means that its importation, distribution, and sale are no longer subject to previous import controls or regulations.
: Republic Act No. 650 is a law to regulate imports and for other purposes, and it provides the legal basis for the President to control or decontrol certain imported goods, such as the tetanus anti-toxin.
: Executive Order No. 581 revises Annex A of Executive Order No. 471, dated August 24, 1951.
: Marciano Roque signed the order as the Acting Executive Secretary.
: The order was signed in the City of Manila on April 4, 1953, marking the official enactment of the revision under Philippine sovereignty, the seventh year of Independence.
: The text of Executive Order No. 581 itself does not specify penalties or sanctions; it only revises regulatory status of certain products as per its authority under Republic Act No. 650.