Canada's federal budget watchdog says she isn't getting what she wants from a number of government departments and agencies that have now missed two deadlines to hand over information.

Sonia L'Heureux, the interim parliamentary budget officer, issued a press release Monday saying that in April she sought information to do an analysis of last year's federal budget, at the request of a parliamentarian.

"The first deadline for providing it came and went, and the majority of departments and agencies did not comply with the totality of my request," she said.

Interim Parliamentary Budget Officer Sonia L'Heureux. (Parliament of Canada)

L'Heureux took the matter to the Speaker of the Senate and the Speaker of the House of Commons who advised her to write to the non-compliant departments and agencies again, requesting the information.

"That second deadline of July 19, 2013 came and went, and I have yet to be provided with all the information that I need to undertake the requested analysis," she said. "If and when I am provided with it, I look forward to performing the analysis and, thereby, discharging my legislative mandate."

L'Heureux took over the position from Kevin Page, whose term was not renewed when it expired at the end of March. Page frequently sparred with the government over the disclosure of information and even sought a legal definition of his mandate.