OTTAWA - The Canadian Transportation Agency has released a decision outlining how Air Canada should accommodate travellers with peanut or nut allergies.

It says that when the airline has at least 48 hours advance notice of a traveller with these allergies, it must create a buffer zone around the person.

The onboard snack and meal service would not provide nuts or peanuts to any passengers within the buffer zone, and airline personnel would inform those passengers that they can only eat peanut-free and nut-free foods.

The airline's next step is to let the transportation agency know within 10 days whether it intends to implement these accommodation plans.

If it does intend to introduce them, the airline has 30 days to submit a formal policy on peanut and nut allergies for the agency to review and approve.

If Air Canada decides not to go along with the agency decision, it must file arguments within 30 days demonstrating that the accommodation would result in undue hardship, or submit a proposal for a reasonable alternative.