Air Brakes

Air Brakes are a Special Endorsement on you licence.
Various provinces offer free guides online.

Nova Scotia Air Brake Manual (PDF)

Ontario makes it available as a web page Only
http://www.mto.gov.on.ca/english/handbook/airbrake/

Newfoundland 
http://www.servicenl.gov.nl.ca/drivers/DriversandVehicles/driverlicensing/airbrake.pdf

New Brunswick
http://www2.gnb.ca/content/dam/gnb/Departments/ps-sp/pdf/Publications/ab_manual-e.pdf

Manitoba
http://digitalcollection.gov.mb.ca/awweb/pdfopener?smd=1&did=20528&md=1

Sask
http://www.sgi.sk.ca/pdf/airbrake_manual.pdf

Nova Scotia Class 1 Licence Requirements

In Nova Scotia, You require a Class 1 licence for driving semi-trailers and tractor-trailer combinations. A Class 5 is valid as a learners for Class 1 provided you are driving with a Class 1 Driver.

Minimum Requirements: Class 1

• Age 19 years,
• 1 year's experience with at least Class 5 licence,
• Successfully complete written test for a Class 1 vehicle,
• Provide satisfactory medical and optical reports when you apply and periodically thereafter, and
• Successfully demonstrate driving ability in a semi-trailer or a tractor trailer combination.
• Newly-licenced drivers cannot upgrade to a higher class licence while they have newly-licenced status.