NO NEED STATT any more for any regular maintenance/warranty work, or just to pick up your newly purchased firearm from postal office. This is my personal experience with Ontario CFO. I was being cautious in at least 3 cases, every time they told me that these situations are included in the 6 conditions(see details below and the RCMP source) and no need STATT. Only once when I need to return a purchase(NOT warranty), I DO need a STATT to go to postal office. The CFO slipped her tongue and said "here is your ATT to go to postal office to shoot". Permission from RCMP to go postal. Lol...
1. Transportation of restricted firearms and/or prohibited handguns (12(6.1) of the Firearms Act) possessed for the purpose of target practice to and from all shooting clubs and ranges approved under section 29 of the Firearms Act.
2. Transportation of restricted firearms and/or prohibited firearms to and from any place a peace officer, firearms officer of Chief Firearms Officer (CFO) is located for verification, registration or disposal in accordance with the Firearms Act or Part III of the Criminal Code.
3. Transportation of restricted firearms and/or prohibited firearms to and from a business that holds a licence authorizing it to repair or appraise prohibited or restricted firearms.
4. Transportation of restricted firearms and/or prohibited firearms to and from a gun show.
5. Transportation of restricted firearms and/or prohibited firearms to a port of exit, in order to take them outside Canada and from a port of entry.
6. Transportation of newly acquired restricted firearms and/or prohibited firearms from the place of acquisition to the licence holder's dwelling house or other place authorized by the CFO.
http://www.rcmp-grc.gc.ca/cfp-pcaf/notice-avis-2015-09-eng.htm#a2 (Q14)
With the new Bill C42 all you need is a STATT to take it to the post office and mail it to the smith. Good to throw a copy of the reg card in with it.