Altering the authority of the Washington Suburban Sanitary Commission (WSSC) to adopt regulations for the installation of specified plant and equipment in connection with fuel gas; authorizing the WSSC to require a permit and charge a fee for the installation of specified fuel gas plant and equipment; repealing a provision that states that the WSSC does not have jurisdiction over bottled gas and that WSSC regulations do not apply to premises on which only bottled gas is consumed; and making stylistic changes.