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Logbook Example #13

Violations: There is a 30 minute break violation from 11 p.m. to midnight.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at midnight. The driver drove for 5 hours before obtaining 10 consecutive hours off duty using a combination of consecutive off duty and sleeper berth time. This 10 hour break moves the calculation point to 3:00 p.m., at which point the driver had another 11 hours available. Because the driver then drove for only 9 hours (out of an available 11), there are no violations.

Explanation - 30 Minute Break: After taking 10 consecutive hours off duty from 5:00 a.m. to 3:00 p.m., the driver was eligible to drive for 11 hours. However, the driver did not meet the 30 minute break provision requirements. At 11 p.m., the driver had been on duty longer than 8 consecutive hours without a 30 minute break. As such, the driver was not allowed to operate a CMV from the hours of 11:00 p.m. to Midnight.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty on the previous day, the driver had 14 hours available beginning at Midnight. The driver accumulated just 5 on duty hours before going off duty for another 10 consecutive hours. The calculation point then moves to 3:00 p.m., and after that point the driver accumulated 9 hours on duty which is within the legal 14 hour limit.

Logging Example #14

Day 1

Day 2

Violations: There is a 30 minute break violation from 6:00 p.m. to 7:00 p.m. on Day 1. On Day 2, there is an 11 hour rule violation from 5:00 a.m. - 6:00 a.m.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available at 10:00 a.m. on Day 1. At the end of the day, the driver had 2 hours remaining and, without a valid 10 hour break, the driver violated the 11 hour limit by driving an additional 1 hour at 5 a.m. on Day 2.

Explanation - 30 Minute Break: As soon as the driver went into an on duty status (driving) at 10:00 a.m. on Day 1, the driver was allowed an 8 consecutive hour time frame to drive a CMV until a 30 minute break had to be taken. The driver did not stop driving until 9 hours had passed, thus violating the 30 minute break provision from 6:00 p.m. to 7:00 p.m. on Day 1. On Day 2, the driver was only on duty for a total of 3 hours which does not require a 30 minute break.

Explanation - 14 Hour Limit: Calculation of the 14 hour limit begins at 10:00 a.m. on Day 1. The driver used 9 of 14 available hours on Day 1. Because the driver then got at least 8 consecutive hours in a sleeper berth from 7:00 p.m. on day 1 until 3:00 a.m. on Day 2, that rest break is not included in the 14 hour calculation. The new 14 hour limit calculation point was then 3:00 a.m. with 5 hours remaining (14 available hours - 9 hours used on Day 1). At 6:00 a.m. the driver switched to off duty for the remainder of the day with 2 hours remaining on the 14 hour limit.

Logging Example #15

Day 1

Day 2

Violations: There is an 11 hour rule violation from 11:00 a.m. - 1:00 p.m., and a 14 hour rule violation from 7:00 a.m. - 1:00 p.m., both on Day 2.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available at 10:00 a.m. on Day 1. The driver did not have another 10 hour break (or the equivalent) until 1:00 p.m. on Day 2, so the calculation point never changes. The driver accumulated 7 total hours of driving on Day 1 and reached the 11 hour limit at 11:00 a.m. on Day 2. The violation began when the driver continued driving after that limit.

Explanation - 30 Minute Break: Since the longest consecutive stretch of on duty time was only 6 hours, the driver was never required to take a 30 minute break on either Day 1 or Day 2.

Explanation - 14 Hour Limit: Calculation of the 14 hour limit starts at 10:00 a.m. on Day 1. The 14 hour limit was reached at midnight, and the driver violated the 14 hour rule by driving a CMV starting at 7:00 a.m. on Day 2.

To remain in compliance: The driver should have stayed in the sleeper berth for one additional hour during one of the two sleeper berth breaks. This would have given the driver the equivalent of 10 hours off duty, making him or her eligible for the sleeper berth provision. This would have moved the calculation point to the end of the first of the two breaks (10:00 p.m. on Day 1) and the driver would have remained in compliance on Day 2, in this example.

Logging Example #16

Day 1

Day 2

Violations: There are 11 and 14 hour rule violations from 8:00 a.m. - 1:00 p.m. on Day 2.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at 2:00 a.m. on Day 1. The driver reached the 11 hour driving limit at 3:00 p.m. on Day 1 and did not obtain another 10 hour break before driving again at 8:00 a.m. on Day 2, thus violating the 11 hour limit. The driver then obtained 8 consecutive hours in a sleeper berth, which, combined with the earlier 7 1/2 hour sleeper berth period, made the driver eligible for the split sleeper berth provision which means the driver accumulated at least 10 hours of rest using a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours. This moves the 11 hour calculation point to the end of the first of the two qualifying breaks, or 5:00 a.m. on Day 2. Between 5:00 a.m. and 9:00 p.m., the driver had 5 hours of driving, so at 9:00 p.m. on Day 2 there were 6 hours remaining, and there were no further 11 hour rule violations.

Explanation - 30 Minute Break: The driver was never on duty or driving for enough consecutive hours which would make 30 minute break mandatory, therefore the 30 minute break provisions does not apply in this example.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at 2:00 a.m. on Day 1. The 14 hour limit was reached at 4:00 p.m. on Day 1. Without a valid 10 hour break, the hours continued to accumulate into Day 2, and the driver violated the 14 hour rule by driving at 8:00 a.m. The driver then went into the sleeper berth for 8 consecutive hours, which enabled him or her to take advantage of the split sleeper berth provision. This moves the 14 hour calculation point to 5:00 a.m. on Day 2, the end of the first of the two qualifying breaks. Counting forward from there, the 8 hours from 5:00 a.m. to 1:00 p.m. are included in the calculation, but the 8 hour sleeper berth period is excluded. Therefore, at 9:00 p.m. on Day 2, the driver had 6 hours remaining and had no further violations of the 14-hour rule.

To remain in compliance: The driver should have remained in the sleeper berth until 5:30 a.m. on Day 2, thus moving the calculation point to 9:00 p.m. on Day 1. Or, at 9:00 p.m. on Day 1, the driver should have remained in the sleeper berth instead of going on duty for 30 minutes.

A driver may accumulate 10 consecutive hours of rest using any combination of sleeper berth and off duty time, as long as all the time is consecutive.
Any sleeper berth period of at least 8 but less than 10 consecutive hours is excluded from the 14 hour calculation. The driver had 8 consecutive hours in the sleeper berth, but that break does not give the driver any extra driving time (that is, it does not change the calculation point). In addition, the driver cannot use the sleeper-berth provision because he or she did not obtain the equivalent of 10 hours of rest by getting a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours.
As with the 11 hour limit, the sleeper berth periods do not affect the calculation point of the 14 hour limit because the driver did not obtain a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours.
The fact that the driver returned to compliance after 9:00 p.m. on Day 2 does not remove the violation from 8:00 a.m. – 1:00 p.m. Note also that even though the driver had a violation, he or she is not required to take 10 consecutive hours off duty in order to return to compliance. In this case, 8 hours in the sleeper berth was enough.
The fact that the driver returned to compliance after 9:00 p.m. on Day 2 does not remove the violation from 8:00 a.m. – 1:00 p.m.

CDL:

Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

  • Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.

Logbook:

A written or electronic record of a driver's duty status which must be maintained at all times. The driver records the amount of time spent driving, on-duty not driving, in the sleeper berth, or off duty. The enforcement of the Hours Of Service Rules (HOS) are based upon the entries put in a driver's logbook.

Sleeper Berth:

The portion of the tractor behind the seats which acts as the "living space" for the driver. It generally contains a bed (or bunk beds), cabinets, lights, temperature control knobs, and 12 volt plugs for power.

CMV:

Commercial Motor Vehicle

A CMV is a vehicle that is used as part of a business, is involved in interstate commerce, and may fit any of these descriptions:

  • Weighs 10,001 pounds or more
  • Has a gross vehicle weight rating or gross combination weight rating of 10,001 pounds or more
  • Is designed or used to transport 16 or more passengers (including the driver) not for compensation
  • Is designed or used to transport 9 or more passengers (including the driver) for compensation
  • Is transporting hazardous materials in a quantity requiring placards

Review Questions - Click On The Picture To Begin...

Which violations have occurred in the below example?

Day 1

Day 2

  • There is a 14 hour violation and an 11 hour violation
  • There is a 14 hour violation only
  • There is a 14 hour violation and a 30 minute break violation
  • There is an 11 hour violation only

Quote From The CDL Manual:

Day 1

Day 2

Violations: There is an 11 hour rule violation from 11:00 a.m. - 1:00 p.m., and a 14 hour rule violation from 7:00 a.m. - 1:00 p.m., both on Day 2.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available at 10:00 a.m. on Day 1. The driver did not have another 10 hour break (or the equivalent) until 1:00 p.m. on Day 2, so the calculation point never changes. The driver accumulated 7 total hours of driving on Day 1 and reached the 11 hour limit at 11:00 a.m. on Day 2. The violation began when the driver continued driving after that limit.

Explanation - 30 Minute Break: Since the longest consecutive stretch of on duty time was only 6 hours, the driver was never required to take a 30 minute break on either Day 1 or Day 2.

Explanation - 14 Hour Limit: Calculation of the 14 hour limit starts at 10:00 a.m. on Day 1. The 14 hour limit was reached at midnight, and the driver violated the 14 hour rule by driving a CMV starting at 7:00 a.m. on Day 2.

To remain in compliance: The driver should have stayed in the sleeper berth for one additional hour during one of the two sleeper berth breaks. This would have given the driver the equivalent of 10 hours off duty, making him or her eligible for the sleeper berth provision. This would have moved the calculation point to the end of the first of the two breaks (10:00 p.m. on Day 1) and the driver would have remained in compliance on Day 2, in this example.

Next

What violation has occurred at 8:00 a.m. on Day 2?

Day 1

Day 2

  • There is no violation
  • There is an 11 hour and 14 hour rule violation
  • There is an 11 hour rule violation
  • There is a 14 hour rule violation

Quote From The CDL Manual:

Day 1

Day 2

Violations: There are 11 and 14 hour rule violations from 8:00 a.m. - 1:00 p.m. on Day 2.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at 2:00 a.m. on Day 1. The driver reached the 11 hour driving limit at 3:00 p.m. on Day 1 and did not obtain another 10 hour break before driving again at 8:00 a.m. on Day 2, thus violating the 11 hour limit. The driver then obtained 8 consecutive hours in a sleeper berth, which, combined with the earlier 7 1/2 hour sleeper berth period, made the driver eligible for the split sleeper berth provision which means the driver accumulated at least 10 hours of rest using a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours. This moves the 11 hour calculation point to the end of the first of the two qualifying breaks, or 5:00 a.m. on Day 2. Between 5:00 a.m. and 9:00 p.m., the driver had 5 hours of driving, so at 9:00 p.m. on Day 2 there were 6 hours remaining, and there were no further 11 hour rule violations.

Explanation - 30 Minute Break: The driver was never on duty or driving for enough consecutive hours which would make 30 minute break mandatory, therefore the 30 minute break provisions does not apply in this example.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at 2:00 a.m. on Day 1. The 14 hour limit was reached at 4:00 p.m. on Day 1. Without a valid 10 hour break, the hours continued to accumulate into Day 2, and the driver violated the 14 hour rule by driving at 8:00 a.m. The driver then went into the sleeper berth for 8 consecutive hours, which enabled him or her to take advantage of the split sleeper berth provision. This moves the 14 hour calculation point to 5:00 a.m. on Day 2, the end of the first of the two qualifying breaks. Counting forward from there, the 8 hours from 5:00 a.m. to 1:00 p.m. are included in the calculation, but the 8 hour sleeper berth period is excluded. Therefore, at 9:00 p.m. on Day 2, the driver had 6 hours remaining and had no further violations of the 14 hour rule.

To remain in compliance: The driver should have remained in the sleeper berth until 5:30 a.m. on Day 2, thus moving the calculation point to 9:00 p.m. on Day 1. Or, at 9:00 p.m. on Day 1, the driver should have remained in the sleeper berth instead of going on duty for 30 minutes.

Prev
Next

What violations occurred on the below example?

  • There is a 14 hour rule violation and a 30 minute break violation
  • There are no violations on this example
  • There is an 11 hour rule violation and a 30 minute break violation
  • There is a 30 minute break violation

Quote From The CDL Manual:

Violations: There is a 30 minute break violation from 11 p.m. to midnight.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at midnight. The driver drove for 5 hours before obtaining 10 consecutive hours off duty using a combination of consecutive off duty and sleeper berth time. This 10 hour break moves the calculation point to 3:00 p.m., at which point the driver had another 11 hours available. Because the driver then drove for only 9 hours (out of an available 11), there are no violations.

Explanation - 30 Minute Break: After taking 10 consecutive hours off duty from 5:00 a.m. to 3:00 p.m., the driver was eligible to drive for 11 hours. However, the driver did not meet the 30 minute break provision requirements. At 11 p.m., the driver had been on duty longer than 8 consecutive hours without a 30 minute break. As such, the driver was not allowed to operate a CMV from the hours of 11:00 p.m. to Midnight.

Explanation - 14 Hour Limit: After 10 consecutive hours off duty on the previous day, the driver had 14 hours available beginning at Midnight. The driver accumulated just 5 on duty hours before going off duty for another 10 consecutive hours. The calculation point then moves to 3:00 p.m., and after that point the driver accumulated 9 hours on duty which is within the legal 14 hour limit.

Prev
Next

On what day and time does an 11 hour rule violation occur?

Day 1

Day 2

  • Day 2 at 5:00 a.m.
  • Day 2 at 3:00 a.m.
  • There is no 11 hour rule violation on either day of this example
  • Day 1 at 6:00 p.m.

Quote From The CDL Manual:

Day 1

Day 2

Violations: There is a 30 minute break violation from 6:00 p.m. to 7:00 p.m. on Day 1. On Day 2, there is an 11 hour rule violation from 5:00 a.m. - 6:00 a.m.

Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available at 10:00 a.m. on Day 1. At the end of the day, the driver had 2 hours remaining and, without a valid 10 hour break, the driver violated the 11 hour limit by driving an additional 1 hour at 5 a.m. on Day 2.

Explanation - 30 Minute Break: As soon as the driver went into an on duty status (driving) at 10:00 a.m. on Day 1, the driver was allowed an 8 consecutive hour time frame to drive a CMV until a 30 minute break had to be taken. The driver did not stop driving until 9 hours had passed, thus violating the 30 minute break provision from 6:00 p.m. to 7:00 p.m. on Day 1. On Day 2, the driver was only on duty for a total of 3 hours which does not require a 30 minute break.

Explanation - 14 Hour Limit: Calculation of the 14 hour limit begins at 10:00 a.m. on Day 1. The driver used 9 of 14 available hours on Day 1. Because the driver then got at least 8 consecutive hours in a sleeper berth from 7:00 p.m. on day 1 until 3:00 a.m. on Day 2, that rest break is not included in the 14 hour calculation. The new 14 hour limit calculation point was then 3:00 a.m. with 5 hours remaining (14 available hours - 9 hours used on Day 1). At 6:00 a.m. the driver switched to off duty for the remainder of the day with 2 hours remaining on the 14 hour limit.

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Logbook Examples 9 Through 12
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Logbook Examples 17 Through 20

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