FREDERICTON -- A delay by the federal government in appointing a new lieutenant-governor for New Brunswick is creating a logjam of unfinished business for the provincial government.

Lt.-Gov. Jocelyne Roy Vienneau, the first Acadian woman to hold the office, died Aug. 2 after a lengthy battle with cancer.

Important government business, including providing royal assent to bills, can't be completed until the lieutenant governor signs an order-in-council.

New Brunswick Premier Blaine Higgs says the delay is holding up some business.

"We have orders-in-council that we aren't able to pass through the system because they have to be approved by the (lieutenant-governor). We have a bit of a backlog. Some of them are more time sensitive than others," Higgs said Thursday.

"At this point I would say we're managing the sensitivity in time ... but the longer this goes on, the more of a backlog we get, and the more time constraints become a challenge."

Lieutenant-governors are appointed by the prime minister, but a spokesperson for his office said Thursday that there was nothing to announce yet.

When Saskatchewan Lt.-Gov. Thomas Molloy died in July, Russell Mirasty was appointed as a replacement just 15 days later.

Roy Vienneau was appointed by former prime minister Stephen Harper in 2014.

Lieutenant-governors usually serve for a term of at least five years.