There was a big sign and certificate next to the bread selection plaque thing, you couldn't exactly miss it.
Where else would it matter, I would assume it would be subways customers.
Anyhow quite enjoyed my samwich, might go again next week. Love the fact you can chuck all the salad on you want, makes you feel like you're eating healthy!
http://www.subway.com/menu/Product.aspx?CC=USA&LC=ENG&ProductId=106&MenuId=53&MenuTypeId=1 FT Long only £3