REQUEST FOR PROPOSALS   HeritageRail Alliance (the organization) is the champion and facilitator of a strong and vibrant heritage rail community in North America, acting as the collective voice of railway museums and tourist lines and leading by example through innovation, education, and advocacy. The 501 (c)6 nonprofit organization maintains over 175 institutional members and dozens of commercial members.   INTRODUCTION The organization is seeking proposals from qualified firms or individuals to provide administrative services, membership services, financial services, marketing, conference planning, and other related tasks. The services r