This is straight from the hunting regs in BC:
Big Game Accompanied Hunts
4A non-resident of BC who is a resident
of Canada or a Canadian citizen may be
accompanied by a resident of BC who
holds a Permit to Accompany. Only one
Permit to Accompany will be issued to a
person in a licence year.
4The BC resident applying for this permit
must be a Canadian citizen or permanent
resident of Canada who has held a BC
hunting licence and a big game species
licence for 3 of the 5 years preceding application
(or 2 of the 5 years preceding application
if the applicant has completed
C.O.R.E).This person must obtain the
required permit at least one month prior
to hunting. Applications for permits are
available at Service BC offices, the Permit &
Authorization Bureau, or electronically from
the MoE website:
www.env.gov.bc.ca/pasb/applications.
html. (See Wildlife Permits &
Commercial Licences article, page 19.)
4The non-residents must show the Permit
to Accompany or a copy indicating the
name of the permittee when purchasing
their big game species licences.
4A non-resident who is not a resident of
Canada and is not a Canadian citizen, may
also be eligible under the Permit to
Accompany providing they qualify under
one of the required relationship categories
(ie, if accompanied by a father, brother, son,
uncle, nephew, grandson, grandfather,
mother, sister, daughter, aunt, niece, granddaughter,
grandmother, spouse, father-in-law,
mother-in-law, son-in-law, daughter-in-law,
brother-in-law, or sister-in-law, but excludes
cousins).
4Permits to Accompany may not be available
for all species and areas (for example,
thinhorn sheep). Please contact the Permit
and Authorization Service Bureau toll free
at 1-866-433-7272 (Victoria: 952-0932) for
more information.
4Royalties are payable on animals taken
under a Permit to Accompany (see Royalty
Fees section).
Your non-resident alien friends are unable to use a permit to accompany, but your close relatives are.
The species and area you wish to hunt will determine if you can get the PTA.