Welcome to disABILITIES.
I think I can clear it up for you, but feel free to ask more questions if anything isn't clear (or you think of anything else).
GAC stands for Guest Assistance Card and you can request one at Guest Relations at any of the parks.
Some of the things a GAC might allow you to do are:
-use a stroller as a wheelchair (allowing a stroller to go in lines and buildings where strollers are not usually allowed to go).
-wait in an area out of the sun when the queue is in the sun for a substantail amount of time.
-use the wheelchair entrance without having a wheelchair or
ecv (for invisible handicaps)
-sit in specific areas for shows; like in the front for someone with vision impairment or where they can see interpreters if they are hearing impaired
A GAC is usually issued for the entire length of your stay and includes the person with a disability plus up to 5 members of their party. It is not meant to shorten the wait in line or bring you to the front of the line. Sometimes you will even wait longer for an accessible car or because there are other people with disabilities wither waiting or in the ride/attraction. For fire and safety reasons (and because some rides only accomidate a certain number of wheelchairs at once), each ride/attraction has a limit on the number of special needs people who can be on at one time.
Most of the lines at WDW are wheelchair/
scooter accessible. For places where there is a wheelchair entrance, anyone using a wheelchair or scooter would use that entrance without needing to have a GAC. Most people who use a wheelchair or scooter don't need a GAC unless they have other problems that make waiting in line difficult. And if you are going during a slow time, a GAC will probably not be needed because the waits in general will be short.
