These are GENERIC ONLY and not Necessarily Relevant to any particular Company.  It should be noted, however, that if you do not believe you can meet these minimum requirements, you should look to another profession.

Responsibilities: 

Responsible for the safe and efficient running of the vessel he/she has been appointed to command. The company relies upon the Master to set a high standard of personal and professional conduct and to set an example to the officers and men under his/her command. The Master will be mindful of the need to maintain morale and encourage sober habits in the crew.

The Master will, at all times, give attention to the safety of the ship and crew, and will ensure that safe working practices are always employed. However, this does not relieve all crewmembers from their obligation to independently exercise reasonable care for their own safety and the safety of all other crewmembers.

Functions: 

• When relieving, the Master should become acquainted with handling characteristics of the vessel, cargo, capacity, equipment, operation of
  navigational equipment, speed, fuel consumption, ballast arrangements, safety apparatus, personnel, and other essential characteristics, to
  determine whether the vessel is seaworthy, and that the equipment is in satisfactory condition.
• If applicable, ascertain the operating schedule and changes to the number and location of rigs/platforms to be serviced.
• Remain fully informed and adhere to all relevant laws, regulations, and directives affecting the operation of the vessel.
• Identify and prioritize maintenance and repair items in a work list. Ensure that paperwork requirements are met, i.e. rough log, company log,
  charter’s log, reports, forms, engineering maintenance systems records, etc.
• Ensure corrections are made to the navigational charts and publications, and that “Notices to Mariners” are received aboard that are current and received on a timely basis.
• Ensure that the vessel is operationally ready to get underway by checking the bridge/engine room interfacing equipment, internal and external communications equipment, electronic navigational aids, navigational lights and signals, and searchlights.
• Identify and respond to potentially hazardous conditions while maneuvering.
• Ensure stability is maintained as cargo is brought aboard and stowed, or as fuel and other consumables are used by using the Stability Letter or the Trim and Stability Book information.
• Verify with the Mate that the anchor handling winch and all associated gear and tools are operable and available.
• Set courses, determine geographical position, calculate land fall and avoid hazards to shipping by utilizing aids such as lights, lighthouses,
  buoys, charts, plotting sheets, sextant, GPS, azimuths or other celestial bodies.
• Understand procedures and be able to receive and pump all fluids and cargo.
• Adhere to and comply with company policies, USCG, and environmental regulations.
• Work a rotation watch involving 12 hours in a 24 hour period with occasional additional hours not to exceed 14 consecutive hours.
• Overall responsibility for the safety of the crew and the vessel during emergency situations.
• Maneuver the vessel to remain in navigable waters and minimize the effects of an emergency situation.
• Assess the severity of all emergency situations and determine the most advantageous method to combat the emergency.
• Responsible for the establishment of any damage control, fire fighting procedures, and personnel assignments.
• Summon additional assistance, as required, from other ships, rigs/platforms.
• Responsible for the ordering of the abandonment of the vessel in order to prevent serious personnel injuries.
• Ensure that first aid is provided to victims and ascertain if additional medical assistance is required.
• Responsible for immediately notifying the company of a death aboard the vessel.
• Log, record, and document pertinent information or circumstances of any emergency, injury, accident, illness, or death aboard the vessel and complete all required reports.
• Full authority over all officers and unlicensed personnel on the vessel.
• Follow up on assigned maintenance and repair work lists provided by the Mate and the Chief Engineer.
• Responsible for the maintenance of proper watches on the vessel at all times.
• Remain alert at all times for potential safety hazards.
• Responsible for imparting knowledge about the specific features, characteristics, and procedures of the vessel operations to crew members, and the orientation of all new personnel aboard the vessel.
• Responsible for the posting and maintenance of station bills, equipment and arrangement diagrams, standing orders and company operations and safety manual(s) aboard the vessel.
• Provide on-the-job training following standard operating procedures and Company policy to develop personnel skills above minimum levels.
• Responsible for the training and evaluation of personnel in the performance of specified duties.
• Responsible for conducting an ongoing safety program aboard the vessel, including the planning and holding of emergency drills, and for
  emphasizing to the crew the need to wear protective clothing and their need to use common sense while carrying out their assignments.
• Ensure that crew members report potential safety hazards and then take prompt corrective action.
• Ensure that Documentation Certificates, International Load-line Certificates, Safety Equipment Certificates, De-rat Certificates, USCG
  Inspection Certificates (U.S. vessels) Masters, Mates and Engineer licenses and fee Station Licenses (U.S. vessels) are onboard, posted
  (where required) and up-to-date.
• Ensure that the safety, maintenance, and reporting requirements of the regulatory bodies of the vessel registry are carried out.
• Perform any other additional duties that may be required or assigned. 
• Ensures that he/she is fully capable of navigating through and communicating the requirements and contents of the ISM to company
  representatives, regulatory personnel, and vessel crewmembers.
• Responsible for participating in the company's safety programs.
• Responsible for ensuring the maintenance and use of all necessary PPE.
• Responsible for ensuring the elimination of at-risk behaviors by reducing unsafe conditions and un-safe acts on and around the work-site.
• Responsible for participating in safety and rescue drills for emergency situations.
• Reports any suspicious behavior, activities, cargo or security breaches to the Vessel Security Officers

Physical Demand Requirements:

• Required to be able to write in English, read in English, calculate, have estimation skills, possess good verbal presentation and be able to
  communicate effectively.
• Required to be able to tolerate repetitive and prolonged postures involving standing, sitting, twisting, squatting, kneeling, stooping, bending, pushing, pulling, stretching, and reaching to full range from above head to the floor.
• Required to utilize good dexterity and frequently use one and two hands throughout the work period for grasping the controls of the vessel.
• Required to be able to climb ladders, stairwells, and use good balance/coordination when walking over uneven and/ or slippery surfaces.
• Required to have sufficient cardio-respiratory fitness to occasionally perform medium – heavy physical labor involving the ability to sit and/or
  stand for extended periods, walk for prolonged periods, handle various materials and tools, climb ladders, and climb stairwells.
• Ability to be subject to adverse weather conditions including rough seas, cold, wet, elevated temperatures, and humid conditions.
• Required to be able to lift at least 100 lbs from floor to waist.
• Required to be able to lift at least 75 lbs. from floor to shoulder.
• Required to be able to lift at least 25 lbs. from deck to above head.
• Required to be able to demonstrate 90 lbs of grip strength in dominant hand and 80 lbs. in non-dominant hand

Reports to Company