***STCW Chapter VIII - standards regarding watchkeeping

Question 1

STCW - rest periods for persons with safety, pollution prevention, and security duties

Answer 1

no less than:
- 10hrs in 24hr period
- 77hrs in any 7-day period
may be divided:
- no more than 2 periods
- one shall be at least 6hrs
- intervals between shall not exceed 14hrs

Question 2

STCW - “overriding operational conditions” are…

Answer 2

• emergencies, unforeseen safety events, and drills
• drills should be scheduled to minimize disruption to rest

Question 3

STCW - rest records

Answer 3

• daily records of seafarer rest shall be maintained

Question 4

STCW - exceptions made to 7-day required rest

Answer 4

• as long as rest is not less than 70hrs in 7-day period
• cannot exceed two consecutive weeks
• intervals between two periods of exceptions shall not be less than twice the duration of the exceptions

Question 5

STCW - rest period divided into three periods

Answer 5

• one period shall be at least 6hrs
• neither of the other two shall be less than one hour
• intervals between consecutive rest shall not exceed 14hrs
• exceptions shall not extend beyond two 24hr periods in any 7-day period

Question 6

STCW - alcohol levels

Answer 6

• limit of 0.05% blood alcohol level (BAC)
• limit of 0.25 mg/l alcohol in breath (BrAC)