Two dozen Firearms Act amendments from legislation Parliament passed last year, including tougher background checks for licence eligibility and validation before sales, won’t be in place until sometime after the spring budget, Public Safety Minister Bill Blair says.

“That’s work ongoing, but it’s regulatory and so there are some budget issues that will be addressed in the coming budget and then regulations will be brought forward to bring into effect all of the measures that were approved in that bill,” Blair told iPolitics Wednesday.

READ MORE: Completion of 2019 gun control unfinished while Liberals plan more firearm restrictions

And, with even more new gun control measures in the works, Blair said he has not yet set a deadline to complete another measure stemming from the 2019 bill — a reversal of a 2015 Conservative decision to overrule RCMP classifications that prohibited certain models of military grade rifles imported and sold in Canada.

“There is some regulatory work that needs to be done,” Blair said in an interview after the Liberal West Block caucus meeting Wednesday.

“I don’t have a timeline,” he said.

Most of the key Firearms Act amendments in Bill C-71, which received Royal Assent on the final day of the last Parliament before the Commons adjourned in June, require a cabinet order to take effect.

The legislation was drafted to strengthen safety and oversight over sales and transfers of non-restricted rifles and shotguns, while at the same time respecting the 2015 Liberal election promise not to bring back the kind of long-gun registry that contributed to three successive Liberal election losses from 2006 to 2011.

Some of the amendments would likely not have required new data infrastructure or technology, including the ability for firearm officers or judges to consider a lifetime check —instead of just five years — for violence or threatened and attempted violence, or even threatening conduct, to determine eligibility for a gun licence.

Other amendments, however, including a system requiring a technology-based record of licence validity before sales without the creation of an ownership registry, would likely require new data systems and more time to develop.

With Blair now in charge of implementing a 2019 Liberal election promise to prohibit military-style semi-automatic rifles and a companion plank to support cities that want to reduce gun violence and ban or control handguns, gun-control advocates are concerned about the cabinet delay in putting the C-71 long-gun safety and control measures into force.

At a price tag the Liberal platform set at $250 million for the first year, and $150 million yearly from 2021 to 2024, the assault rifle prohibition, through a buy-back regime gun lobbies call confiscation, is bound to overshadow the complexities of Bill C-71.

The Liberals have now added to the work with Blair’s recent disclosure the government intends to adopt red-flag legislation that would reduce the threshold for court ordered seizures in domestic violence or other gun threats, including potential suicides.

The C-71 measures still not in force come to a total of 24 amendments to sections of the Firearms Act through 13 separate clauses passed last year, including measures addressing the use of violence, or threatened or attempted violence, against an intimate partner or former intimate partner, either directly or through the internet or any other digital network.

READ MORE: Trudeau statement on Canadian gun law sparks Conservative outrage in Commons

The amendments have been listed in a document at the very end of an online version of the Firearms Act maintained by the Justice Department.