Terms and Conditions Governing the Employment of Filipino Seafarers on Board Ocean-Going Vessels.   Verily, when petitioner was hired on 14 March 2003, it was the 2000 Amended Standard Terms and Conditions Governing the Employment of Filipino Seafarers on Board Ocean-Going Vessels that applied, and was deemed written in or appended to his POEA-SEC.  This section specifically provides for the liabilities of the employer for an injury or illness suffered by a seaman during the term of his contract.  Primarily, for an injury or illness to be duly compensated under the POEA-SEC, there must be a showing that such injury or illness occurred or was suffered during the effectivity of the employment contract.  The same is true with respect to any disability caused by either injury or illness.[26]                                                             Section 20(B), paragraph (3) thereof states:   x x x x.   3. upon sign off from the vessel for medical treatment, the seafarer is entitled to sickness allowance equivalent to his basic wage until he is declared fit to work or the degree of permanent disability has been assessed by the companydesignated physician but in no case shall this period exceed one-hundred twenty (120) days.   For this purpose, the seafarer shall submit himself to a postemployment medical examination by a company-designated physician within three working days upon his return except when he is physically incapacitated to do so, in which case   a written notice to the agency within the same period is deemed as compliance. Failure of the seafarer to comply with the mandatory reporting requirement shall result in his forfeiture of the right to claim the above benefits.    As these provisions operate, the seafarer, upon sign-off from his vessel, must report to the company-designated physician within three working days from arrival for diagnosis and treatment.[27]   Applying the above provision of Section 20(B), paragraph (3), petitioner is required to undergo post-employment medical examination by a companydesignated physician within three working days from arrival, except when he is physically incapacitated to do so, in which case, a written notice to the agency within the same period would suffice.