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General Membership - Free Subscription period: Unlimited General members are dues-paying members with voting privileges and may participate in all InWMC activities, including the chairmanship of subcommittees. First year dues are waived for charter members.

Non-voting (Affiliate) Membership - Free Subscription period: Unlimited Affiliate members pay no dues and do not have voting privileges, but may participate in InWMC activities, including participation on subcommittees, except subcommittee chairpersonship.