Vt. Stat. Ann. tit. 5, § 1805

On request by the Agency of Transportation, a company owning or operating a plant, line, or property subject to supervision under this chapter shall furnish the Agency information concerning the condition, operation, management, expense of maintenance and operation, rates charged for service or for product, contracts, obligations, and financial standing of the company. It shall also inform the Agency of the salaries of, the pensions, option, or benefit programs affecting, and the expenses reimbursed to, its officers or directors, or both. The information shall be open to public inspection at reasonable times and any person shall be entitled to copies of the information. Information obtained for use by the Agency in a particular instance and designated proprietary shall not be made public, except in the discretion of the Agency.