Defence Act 1951

Legislation au C1951A00019 Not in force Act

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DEFENCE.

 

No. 19 of 1951.

An Act to amend the Defence Act 1903–1950.

[Assented to 19th July, 1951.]

BE it enacted by the Kings Most Excellent Majesty, the Senate, and the House of Representatives of the Commonwealth of Australia, as follows :—

Short title and citation.

1.—(1.) This Act may be cited as the Defence Act 1951.

(2.) The Defence Act 1903–1950 is in this Act referred to as the Principal Act.

(3.) The Principal Act, as amended by this Act, may be cited as the Defence Act 1903–1951.


Commencement.

2. This Act shall come into operation on the day on which it receives the Royal Assent.

Parts.

3. Section two of the Principal Act is amended by omitting the words—

Part XII.—Universal obligation in respect of Naval Military or Air Force Training.

Part XIII.—Exemptions from Personal Service.

Part XIV.—Registration and Enrolment for Naval Military or Air Force Training..

4. Section five of the Principal Act is repealed and the following section inserted in its stead :—

Application of Act.

5. This Act applies, subject to the Naval Defence Act 1910–1919 and the Air Force Act 1923–1950, to, and in relation to, all the Naval Forces, Military Forces and Air Forces of the Commonwealth, and to all members of any of those Forces whether appointed or enlisted, or deemed to be enlisted, under this Act or under any other Act..

Resignation of commission.

5. Section seventeen of the Principal Act is amended by omitting sub-section (2.).

Constitution of Citizen Military Forces.

6. Section thirty-two a of the Principal Act is amended—

(a) by omitting sub-section (2.) and inserting in its stead the following sub-section :—

(2.) The Active Citizen Military Forces shall consist of—

(a) persons who are appointed to, or voluntarily enlist in, those Forces;

(b) persons who are called up under the National Service Act 1951 for service with the Citizen Military Forces;

(c) persons who are called upon, under section sixty of this Act, to enlist and serve in time of war and are allotted to the Military Forces; and

(d) officers on the unattached list.; and

(b) by omitting from sub-section (3.) all the words commencing with the words and of all persons.

Voluntary enlistment.

7. Section thirty-five of the Principal Act is amended by omitting the words in Parts IV. and XII. and inserting in their stead the words by the National Service Act 1951 or by Part IV..

Time of discharge.

8. Section thirty-nine of the Principal Act is amended by omitting paragraph (c) of sub-section (1.) and inserting in its stead the following paragraph:—

(c) being a person called up for service in accordance with the National Service Act 1951—upon the expiration of the period of five years referred to in section thirty-three of that Act..


On whose complaint prosecutions may be brought.

9. Section one hundred and ten of the Principal Act is amended by omitting from sub-section (5.) the words “Part XII. of this Act” and inserting in their stead the words “the National Service Act 1951”.

Power to discharge or disrate members of Citizen Forces

10. Section one hundred and twelve of the Principal Act is amended by omitting the words “(not serving under Part XII. of this Act)” and inserting in their stead the words “(not being a person who is called up for service in accordance with the National Service Act 1951)”.

Regulations.

11. Section one hundred and twenty-four of the Principal Act is amended by inserting after paragraph (c) of sub-section (1.) the following paragraph :—

“(ca) The conditions of service and training of persons rendering service under the National Service Act 1951; ”

Repeal of Parts XII., XIII. and XIV.

12. Parts XII., XIII. and XIV. of the Principal Act are repealed.

 

Overview

The Defence Act 1951 was enacted to amend the Defence Act 1903–1950, addressing the need to update the legislative framework governing Australia's defence forces in response to changing circumstances and the introduction of the National Service Act 1951. This Act was passed by the Parliament of Australia and received Royal Assent on 19 July 1951. It sought to streamline the governance of the Navy, Military, and Air Forces by removing outdated provisions related to universal obligation, exemptions, and training registration. Instead, it integrated the provisions of the National Service Act 1951, ensuring a more cohesive legislative approach to defence force management and service obligations. The Defence Act 1951 thereby aimed to enhance the efficiency and adaptability of Australia's defence forces by updating the existing legal structure to better align with contemporary requirements and policy objectives.

Scope and Application

The Defence Act 1951 amends the Defence Act 1903–1950, providing updated regulations and responsibilities for the Naval Forces, Military Forces, and Air Forces of the Commonwealth. This Act applies to all members of these forces, including those appointed, enlisted, or deemed to be enlisted under this Act or any other Act, subject to specific provisions in the Naval Defence Act 1910–1919 and the Air Force Act 1923–1950. The Act also extends to the Active Citizen Military Forces, comprising appointed or enlisted personnel, those called up under the National Service Act 1951, and individuals required to enlist during wartime. The Act provides for the constitution, enlistment, and discharge conditions of these forces, including the terms of service for those called up under the National Service Act 1951. It further regulates the conditions of service and training for those serving under this Act. The scope of the Act can be expanded through subordinate instruments, allowing for further detailed regulations and provisions.

Key Provisions

The Defence Act 1951 primarily serves to amend the Defence Act 1903–1950. The operative sections of this Act, such as Section 5, redefine the application of the Act to cover all Naval Forces, Military Forces, and Air Forces of the Commonwealth, as well as all members of these forces, subject to other specific acts like the Naval Defence Act 1910–1919 and the Air Force Act 1923–1950. Section 6, in particular, amends the constitution of the Citizen Military Forces by detailing the composition of the Active Citizen Military Forces, which includes appointed or enlisted persons, those called up under the National Service Act 1951, and officers on the unattached list. Additionally, Section 7 modifies the provision for voluntary enlistment, aligning it with the National Service Act 1951. The Act imposes several obligations and requirements on the parties it governs. For instance, Section 5 explicitly states that the Defence Act 1951 applies to all members of the Naval Forces, Military Forces, and Air Forces. Section 6 details the specific categories of personnel that constitute the Active Citizen Military Forces, thereby clarifying their roles and responsibilities. Furthermore, Section 11 mandates that regulations must include the conditions of service and training for persons rendering service under the National Service Act 1951, ensuring that all personnel are aware of their obligations and entitlements. Breaches of the Act can result in various offences and penalties. Although the specific penalties are not detailed in the provided sections, Section 10, which amends Section 112, suggests that there are powers to discharge or disrate members of Citizen Forces who fail to meet the requirements. This implies that non-compliance could lead to disciplinary actions, including potential discharge from service. Additionally, Section 9 modifies the authority to bring prosecutions, indicating that complaints related to the National Service Act 1951 can now be acted upon under the Defence Act 1951. These changes highlight the serious consequences that can arise from failing to adhere to the Act’s provisions.

Legal classification tags

Area of Law
Defence & Military Law
National Security Law
Instrument
Amending Act
Concepts
Commencement Provisions
Repeal & Amendment
Regulatory Standards

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.