Neil Shuttleworth's reference to AAA entry forms brought back a memory. He refers to them in connection with the Carnethy Hill Race, so in fact it must have been a SAAA entry form that was required.

My first two fell races were Carnethy in 1977 and 1978, with entries dealt with by our club secretary (it was the only fell/hill race we went to as a club); but then, wanting to do more of the sport, I decided to enter the Ben Lomond Race as an individual. The one truly terrifying moment of that, my first Category A race, was when I saw the entry form: a standard SAAA entry form, an A4 sheet full of requests for all sorts of information and declarations, much of which I didn't understand and seemed totally irrelevant to the hill race that I wanted to enter.