NHA
NHA commonly stands for the National Highways Authority overseeing road infrastructure, but also appears in contexts such as heritage preservation, hospital associations, humanities advocacy, and historic housing legislation.
Medical
Miscellaneous
Community
National Hydropower Association
Nantucket Historical Association
Naval Helicopter Association
National Hydrogen Association
Governmental
North House Alliance
National Humanities Alliance
National Highways Authority
No Hope Alliance
National Health Administrator
Next Higher Assembly
National Heritage Area