... indirectly arising from or connected with its maintenance or operations." N.J.S.A. 48:2-16. In addition, the Board may "[i]nvestigate upon its own ... and adequate service to meet the public convenience and necessity." N.J.S.A. 48:2-16.4. The Board would also determine the "reasonable and proper ... of such measures and recognize them "as proper business expenses." N.J.S.A. 48:2-16.4. The regulations set technical standards for the construction of ...