That on and after July 1, 1916, every wharfinger operating a wharf, said wharfinger being defined in Section 9 of Chapter 129 of the Public Laws of 1913, (see page 3 of this edition) shall keep upon its books in the manner and form prescribed in the Uniform Classification of Accounts for Wharfingers the accounts therein so far as the same are applicable to the business of each wharfinger. That in order that each and every wharfinger may comply with the requirements of this order a copy of the Uniform Classification of Accounts for Wharfingers shall be sent to said wharfinger in time to make such changes in their present methods of accounting as may be necessary