I got my parking pass when my PFTs were consistantly in the 30s and I had a hard time in the cold and/or humidity. I didn't quite reach the criteria all the time, but I was close enough that my doc signed off on it for my bad days with the agreement that I wouldn't abuse it. After all, walking is good exercise. I filled out the top half of the form and he filled out the bottom half and sent it in. While I used it pretty rarely then, as my CF has progressed I have been very happy to have it.
Here in CT, the CF-applicable guidelines for eligability are:
1. Use of portable oxygen
2. Inability to walk 200 ft without stopping
3. Restriction because of lung disease to such an extent that forced (respiratory) expiratory volume for one second, when measured by spirometry, is less than one liter, or the arterial oxygen tension is less than sixty mm/hg of room air at rest.
Here in CT, the CF-applicable guidelines for eligability are:
1. Use of portable oxygen
2. Inability to walk 200 ft without stopping
3. Restriction because of lung disease to such an extent that forced (respiratory) expiratory volume for one second, when measured by spirometry, is less than one liter, or the arterial oxygen tension is less than sixty mm/hg of room air at rest.