Section 5
SEC. 5. Section ten of said Act is hereby amended to read as follows: "SEC. 10. Issuance of certificate; classes of same.-Candidates for mate and master having passed the examination shall be entitled to have the proper certificate issued to them which will entitle them to navigate on all seas if they have shown in said examination, to the satisfaction of the board, that they possess the knowledge necessary for navigating on all seas, and have, besides, navigated on the certificate immediately inferior on vessels of six hundred gross tons or over for at least one year: Provided, however, That those who have so navigated and taken the examination during the year nineteen hundred and fifteen may also obtain a certificate for all seas, notwithstanding their having navigated only on a coastwise certificate, but immediately inferior. And if they should already have had a coastwise certificate issued to them, they may exchange the same for another of the same category for all seas, without any further requisite than the payment of the difference in the fees prescribed for the two certificates. In any other case, the candidates may only obtain the corresponding coastwise certificate."