| Subject | English | Spanish |
| transp., tech., el. | certification as second engineer officer | título de maquinista naval jefe |
| gen. | mandatory minimum requirements for certification of second engineer officers | requisitos mínimos aplicables a la titulación de maquinistas navales primeros |
| gen. | minimum practical knowledge for certification of chief engineer officers and second engineer officers | conocimientos prácticos mínimos para la titulación de maquinistas navales jefes y maquinistas navales primeros |
| gen. | minimum theoretical knowledge for certification of chief engineer officers and second engineer officers | conocimientos teóricos mínimos para la titulación de maquinistas navales jefes y maquinistas navales primeros |
| empl., transp., nautic. | second engineer | primer oficial de máquinas |
| empl., transp., nautic. | second engineer | oficial de máquinas de primera |
| empl., transp., nautic. | second engineer officer | oficial de máquinas de primera |
| lab.law., transp. | second engineer officer | segundo mecánico |
| lab.law., transp. | second engineer officer | maquinista naval de segunda clase |
| empl., transp., nautic. | second engineer officer | primer oficial de máquinas |
| hobby, cultur., transp. | second engineer officer | maquinista naval primero |