Compulsory military training (CMT), a form of conscription, was practised for males in New Zealand between 1909 and 1972. Prior to and after this period military training in New Zealand has been voluntary.
Calls for the military training of settlers began in the colony's earliest days. The concern was that settlers were not used to firearms and this could result in their being unable to defend themselves should the need arise. Debate about this continued until in 1843 a militia was formed in Wellington, without the Governor's authorisation, which prompted the Governor to send troops to Wellington to disperse the militia.
There was further debate, and in March 1845 the Militia Ordinance 1845 was passed by the legislature, enabling the Governor to form a militia if and when required; training would be implemented only when the militia was needed. The ordinance required:
Every man except as hereinafter excepted, between the ages of (18) years and (60) years, being a British subject, and not an aboriginal native, who shall reside within the colony, shall be liable to serve in such militia. ...
Those exempted under clause 7 were "Judges of the Supreme Court, all members of the Legislative Council, all clergymen, priests, ministers of religion, and catechists." In addition under Clause 9
the Police Magistrate shall have power, after hearing such objections, to strike out of the said list the names of all persons who shall not be liable to serve as militiamen, and also of such as are afflicted by lunacy or unsoundness of mind, or deafness, blindness, lameness, or by any other disorder that may render them unfit for active service in any such militia ....
The first significant use of this legislation was at New Plymouth in 1858, when 400 residents were called up. On 28 May 1858, the Militia Act 1858 replaced the ordinance, but retained the same provisions as the above clauses. Monetary penalties were introduced for not complying with the call-up.
As a result of the land wars commencing in the early 1860s, the Act was replaced in 1865 by the Militia Act 1865. This new Act changed the requirement to register by reducing the maximum age from 60 to 55 and including all males who had resided in New Zealand for more than three months. The list of exempted professions was expanded, and Militia were classified into three levels of priority, ranging from unmarried men and widowers without children, between eighteen and forty years of age; widowers with children, and married men, between eighteen and forty years of age, unmarried men who could prove that female relatives were dependent upon them for their support; and men between forty and fifty five years of age. Penalties for failing to comply with the Act became considerably tougher, with reference to penalties under Imperial legislation.