COSA and OASE Active Membership - Applies to superintendents and assistant/deputy superintendents. Includes membership in COSA and the Oregon Association of School Executives (OASE), COSA’s superintendents association. In addition to OASE membership, superintendents may also join other COSA departments (OACOA, OASSA and/or OESPA). If you wish to purchase an additional department the fee is $60 and is not calculated in the shopping cart. Please contact Betsy Brawner at 503-581-3141 to adjust your order.