For the first time since 1969, NBAA is restructuring membership dues. The new dues, which will take effect July 1, reflect “moderate increases” for most members, but dues for large fleet operators and a number of other members will remain the same or decrease, according to the association. NBAA said the decision to revise dues was based on the association’s growing and “vast array of services,” which “cost considerable amounts to develop, produce and deliver.”