COSA and OACOA, OASSA or OESPA Active Membership - Applies to persons who are employed in administrative positions in K-12 educational programs and have been excluded from the local bargaining unit. Does not apply to superintendents and deputy/assistant superintendents (see COSA and OASE Active Membership). All active members must belong to at least one department: OASSA; OESPA and/or OACOA. Membership in more than one department is available by paying the appropriate department dues. If you wish to purchase an additional department the fee is $60 for OASSA, OESPA or OACOA, and $210 for OASE. Additional department dues are not calculated in the shopping cart. Please contact Betsy Brawner at 503-581-3141 to adjust your order.