All NGA member athletes must be completely free of the performance-enhancing drugs, as listed below. The length of drug abstinence may be lengthened by the NGA Staff when policies are examined on an annual basis. Any such changes will be announced by the NGA Staff prior to the calendar year when the alteration is to take place. The National Gym Association, Inc. (NGA) bans the following substances and related compounds and their use constitutes grounds for dismissal from NGA competitions and suspension from membership in the organization.