The American Society of Plumbing Engineers (ASPE) is the national society of engineers and designers engaged in the design, s ... pecification and inspection of plumbing systems. ASPE is committed to the promotion of the interests of plumbing engineers through the development and expansion of their professional and technical expertise, to the betterment of the plumbing engineering professional as a whole; to serve as a forum for interchange with related professions, and for the resolution of problems affecting the profession and practice of plumbing engineering. We are dedicated to protecting the health of all people. read more