Membership is open to any state, provincial or commonwealth agency, represented by a land specialist, or their equivalent, responsible for administration of fish and wildlife resources in each state, province, territory or commonwealth in the United States, the Dominion of Canada and the Republic of Mexico, subject to the approval of the Executive Committee and upon payment of annual dues of $150.00.

Any present state, provincial, territory or commonwealth fish and wildlife land specialist, or their equivalent, may become associate members of the Organization upon application and payment of annual dues of $50.00.

Any nongovernmental organization, institution, foundation, society, corporation or person that supports the objectives of the Organization may become a contributing member upon application to and approval of the Executive Committee and payment of annual dues of $35.00. Each contributing member shall be entitled to receive a copy of the annual transactions, and all other privileges of the organization except that of voting when a vote by official member wildlife agency(s) and associate members is requested.