[See 355-31.] SECTION  1333 . Appointment of Special Deputies with Limited Powers . — Collectors of customs may, with the approval of the Insular Collector, appoint from their force such number of special deputies as may be necessary for the proper conduct of the public bu siness, with authority to sign such documents and perform such services as may be specified in writing. [355-18.] SECTION  1334 . Succession of Deputy Collector to Position of Acting Collector . — In the absence or disability of a collector of customs at any other port than Manila, or in case of a vacancy in his office, the temporary discharge of his duties shall devolve  upon the deputy collector of the port. Where no deputy collector is available, an officer to serve in such contingency may be designated in writing by the collector of customs from his own force. The collector of customs making such designation shall repo rt the same without delay to the Insular Collector and the Insular Auditor, forwarding to them the signature of the person so designated. [355-28.] SECTION  1335 . Assignment of Customs Employees to Overtime Work . — Customs employees may be assigned by a collector to do overtime work at rates fixed by the Insular Collector, when the service rendered is to be paid for by importers shippers, or other pers ons served. [367-30.] SECTION  1336 . Compensation of Private Appraisers . — When persons, not Government employees, are employed by a collector of customs to appraise property or report upon its character or value, they may be paid compensation in an amount, to be determined by t he Insular Collector, not exceeding ten pesos for each day during the period necessarily employed in such service. [355-188.] SECTION  1337 . Records to be Kept by Customs Officers . — Collectors of customs, deputy collectors, surveyors, and other customs officers acting in such capacities are required to keep true, correct, and permanent records of their official transactions, to s ubmit the same to the inspection of authorized officers at all times, and to turn over all records and official papers to their successors or other authorized officers. 394 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011