Ark. Code Ann. § 23-18-508

The Arkansas Public Service Commission shall have and is granted the power and authority to make and amend from time to time after reasonable notice and hearing reasonable rules establishing exemptions from some or all of the requirements of this subchapter for the construction, reconstruction, or expansion of any major utility facility which is unlikely to have major adverse environmental or economic impact by reason of length, size, location, available space, or right-of-way on or adjacent to existing utility facilities, and similar reasons.