Although this is taken from the 2010 Rulebook I would be very surprised if there is any change:http://ccsracing.us/forms/2010/rules/2010%20asra-ccs%20rulebook%20print.pdf
5.2.16 All engine, transmission, and final drive unit drain plugs and filler caps
must be visibly safety wired. Oil filter bolts must be secured with safety
wire and spin-on oil filters must be secured with a metal clamp and
safety wire or other acceptable means. Fuel and radiator caps are
exempt. On all machines, enough body work must be removed
before coming to tech inspection so the Inspector can see them.