What it does
Mechanically, the instrument creates two short regulations made under the National Security Act 1939-1940 and notifies them as statutory rules (National Security (Supplementary) Regulations, Statutory Rules 1940 No. 126). The Regulations are dated 4 July 1940 and, in the instrument’s own words, are "made under the National Security Act 1940" (opening paragraph). Regulation 1 provides the formal citation: "These Regulations may be cited as the National Security (Supplementary) Regulations" (Regulation 1). Regulation 2 imposes a single substantive prohibition: "A person shall not advocate, whether orally or otherwise, the use of War Savings Certificates for payment for goods or services" (Regulation 2).
Taken at face value, the immediate legal effect is to prohibit advocacy of a particular form of payment , War Savings Certificates , being used to discharge obligations for goods or services. The instrument does not contain additional procedural, definitional, commencement, territorial, penalty or enforcement provisions beyond the formal making statement, citation and the single substantive prohibition already quoted. The Regulations are prefaced by the standard executive form indicating the Governor‑General made the Regulations "acting with the advice of the Federal Executive Council" and that Percy C. Spender signed "for and on behalf of the Minister of State for Defence Co‑ordination" (opening paragraph). A footnote records that the Regulations were "Notified in the Commonwealth Gazette on 4th July, 1940."
Because the text of the instrument contains only a single operative prohibition and no specified remedies or sanctions, the practical effect turns on the scope of the words used in that prohibition and on how the principal Act (the National Security Act 1939-1940) and other legal instruments provide enforcement mechanisms. The Regulations themselves do not state enforcement mechanisms or penalties. The only mandatory duty created on the face of the document is the prohibition on advocacy in the terms of Regulation 2.