The Hawai'i Asphalt Paving Industry (HAPI) represents all hot mix asphalt producers in the State of Hawai'i as well as other related industries. Formed in 1989, HAPI's purpose is to provide engineering promotion and education to advance the continuing use of asphalt pavement throughout the State of Hawai'i.

HAPI collects and disseminates technical data and guidelines, sponsors educational and technical seminars, and is available to assist architects, engineers and contractors responsible for the design and construction of asphalt pavements. HAPI and its member firms are striving to improve and produce quality hot mix asphalt for their users.

HAPI Asphalt Pavement Guide
The HAPI Asphalt Pavement Guide is an interactive guide to everything you ever wanted to know about hot mix asphalt including local Hawai'i practice, guidance and designs.