I don't know much about the civil service, but I know that most provincial assemblies have expense disclosures, at least for the elected officials, e.g. [1], [2]. Federal cabinet ministers also have to disclose all of their office expenses (can't find a link, but I know it exists).

[1] BC: http://www.leg.bc.ca/Mla/remuneration/index.htm [2] Alberta: http://alberta.ca/travelandexpensedisclosure.cfm