how does it compare with OM Canada?
Is that somewhat like the owner maintenance category available in Canada?
types listed for eligibility are included, here, with disclaimers of course.
http://www.tc.gc.ca/eng/civilaviation/regserv/cars/part5-standards-a507sh-1837.htm
page 19 in this safety letter discussion outlines it about as well as I've found.
http://www.tc.gc.ca/media/documents/ca-publications/Final_ASL_2-2013_E.pdf
the gist of it:
(6) Special Certificate of Airworthiness - Owner-maintenance
(amended 2002/03/01; no previous version)
(a) A Special C of A in the owner-maintenance classification is issued for recreational purposes only.
(amended 2002/03/01; no previous version)
Information Note:
Aircraft eligible for a Special Certificate of Airworthiness - Owner-maintenance are listed in Appendix H of this Standard.
(b) Each aircraft in respect of which a Special C of A - Owner-maintenance is in effect, is marked on the side of the fuselage, in a position that is readily visible to persons entering the aircraft, in letters at least 10 mm (3/8 in.) high and of a colour contrasting with the background, with a placard containing the following statement:
(amended 2002/03/01; no previous version)
WARNING
SPECIAL CERTIFICATE OF AIRWORTHINESS - OWNER-MAINTENANCE
THIS AIRCRAFT DOES NOT COMPLY WITH INTERNATIONALLY RECOGNIZED AIRWORTHINESS STANDARDS
AVIS
CERTIFICAT SP?CIAL DE NAVIGABILIT? - MAINTENANCE PAR LE PROPRI?TAIRE
CET A?RONEF N?EST PAS CONFORME AUX NORMES DE NAVIGABILIT?
INTERNATIONALES RECONNUES
(c) Each aircraft in respect of which a Special C of A - Owner-maintenance is in effect, and each engine, propeller and life-limited part installed on such an aircraft, has the letter ?X?; permanently etched, engraved or stamped at the end of the model designation and serial number on the identification plate required by >CAR 201.01.
(amended 2002/03/01; no previous version)
(d) A person may have an aircraft type added to the list of aircraft eligible for a Special C of A - Owner-maintenance, by submitting a written request to the Minister, certifying that the aircraft type and model meet the requirements outlined in paragraph (6)(e).
(amended 2002/03/01; no previous version)
Information Note:
A written request must be submitted to the Director, Aircraft Maintenance and Manufacturing, Ottawa, Canada, certifying that the aircraft type and model meet the requirements outlined in paragraph (6)(e).
(e) An aircraft type and model may be included in Appendix H of this Standard, Aircraft eligible for a Special Certificate of Airworthiness - Owner-maintenance?, where:
(amended 2002/03/01; no previous version)
(i) the aircraft is of a type certified in accordance with Chapters 522 or 523 of the Airworthiness Manual, or an equivalent foreign standard;
(ii) the aircraft type certificate does not authorize more than four occupants;
(iii) the maximum certificated take-off weight (MCTOW) of the aircraft does not exceed 1,814 kg (4,000 pounds);
(iv) the aircraft is of a type and model that has not been manufactured during the 60 months preceding the date of application;
(v) fewer than 10% of Canadian aircraft of the type and model concerned are operating in Canadian commercial air service at the time of application;
(vi) the aircraft type and model is powered by a single, normally aspirated, piston engine, and is unpressurized; and
(vii) except for gliders, powered gliders or aircraft with airframes of wooden construction, the aircraft type and model has a fixed landing gear and a fixed pitch propeller.