ARHS meaning in Regional ?

Answer: What is Australian Railway Historical Society mean?

The Australian Railway Historical Society (ARHS) aims to foster an interest in the railways, and record and preserve many facets of railway operations. It had divisions in every state and the Australian Capital Territory, however since 1967 when each division incorporated, they have operated as separate entities. Each division still trades under the ARHS brand, except in Western Australia, where the division is called Rail Heritage WA. Individual membership exceeds 2,500.

reference

Full Form	Category
Alcohol-Related Harms	Academic & Science
Ashley Ridge High School	Community
Auburn Riverside High School	Community
Archbishop Riordan High School	Community
Associate of the Royal Horticultural Society	Community
Amicale des rhumatologues des Hauts-de-Seine	International
Appalachian Regional Healthcare System	Medical
Australian Railway Historical Society	Regional
Albemarle Regional Health Services	Regional
Algonquin Regional High School	Regional
Amherst Regional High School	Regional
Apponequet Regional High School	Regional