11. Owner or Agent to produce fuel form etc.
For the purpose of becoming entitled to make a claim to payments under these Regulations, the owner or other person acting on his behalf making any purchase of fuel on the basis of which a claim is to be made shall at the time of making the purchase produce the fuel purchase form and shall request the vendor or his servant to certify in the appropriate place the amount of fuel purchased, and shall himself counter sign the same and shall specify the place at which the purchase was made.