Below are links to related national and provincial organizations:

ABA (American Bus Association) 

BCTA ( British Columbia Trucking Association)

CBSA (Canadian Border Services Agency)

DESTINATION CANADA

FTA (Bus Carriers Federation) EN

FTA (Fédération des transporteurs par autobus) FR

FMCSA (Federal Motor Carrier Safety Administration) US

MCPCC (Motor Carrier Passenger Council of Canada)

NTA (National Transportation Association) 

OMCA (Ontario Motor Coach Association)

SYTA (Student Youth Travel Association)

TRANSPORT CANADA

TRAVEL INDUSTRY ASSOCIATION OF CANADA

UMA (United Motor Coach Association Canada) 

U.S. Customs and Border Protection