What does EDH stand for?

E. D. Hovee and Co. - Commercial firm

Efficient Deck Hand (NATG)

Efficient Deck Hand certificate (SAUS)

Ego-Distonic Homosexuality (SAUS)

Electronic Document Handling

Engineering Design Handbook (MCD)

Ethylenedihydrazine (MCD)

Execution Data Handler (SAUS)

Sturgeon Bay, WI - Location identifier - FAA (FAAL)

Triad Boatworks, Mattapoisett, MA - Manufacturer code for watercraft hull identification number (USCG)