4(1)The Concessionaires shall, at or near a tidal work, during the whole time of the construction, extension, enlargement, alteration, renewal, replacement or reconstruction thereof, exhibit every night from sunset to sunrise such lights, if any, and take such other steps for the prevention of danger to navigation as the Secretary of State shall from time to time direct.U.K.
(2)If the Concessionaires fail to comply in any respect with a direction given under this paragraph they shall be liable on summary conviction to a fine not exceeding the statutory maximum and on conviction on indictment to a fine.