Lieutenant Matthew Howse said the Canadian military has been "very pro-active in adapting" to the new law, with personnel subject to "guidelines and restrictions" to "maintain safety on the job at all times".
There is no set restricted period around cannabis use for operations - however use of the drug would be prohibited for the duration of training leading up to any deployment.
Consumption of the drug is restricted 28 days prior to any known or expected performance including: operating in a hyperbaric environment, working at an altitude of 3,962 metres above sea level, working as part of a military aircraft's crew, controlling an aircraft, or operating an unmanned aircraft.
Last year, then-Defence Secretary Gavin Williamson announced that the Army was introducing a zero-tolerance drugs policy and said that "anyone caught taking drugs can be and should expect to be dismissed from the Armed Forces".
Last year, the Canadian army also approved of soldiers growing beards.
To stick to the "strict grooming standards", Lieutenant Howse said the cheekbones and neck must be shaved, with a length of no more than two centimetres.