From January 2018 Prayer Letter:

Personal Energy Transportation: PET

We have distributed these little carts for years. They provide handicapped people with the gift of mobility. I have a small army of people who find people in need. This last shipment, the government charged us to import them. We are going to the customs office tomorrow to regulate this. PET International gives them to us, you our donors pay for the transportation and distribution. The handicapped get this gift free of charge.