Review Questions - Click On The Picture To Begin...
Which log below contains at least one violation?
Day 1
Day 2
- Both day 1 and day 2
- There are no violations in this example
- Day 2
- Day 1
Quote From The CDL Manual:
Day 1
Day 2
Violations: There is a 30 minute break violation in this example from 6:00 p.m. - 10:00 p.m and 11:00 p.m. to Midnight on Day 1.
Explanation - 11 Hour Limit: On Day 1, the driver drove from 11:00 a.m. to 4:00 p.m. (5 hours) then again from 6:00 p.m. to 10:00 p.m. (4 hours) and finally from 11:00 p.m. to Midnight (1 hour). Therefore, the driver drove for a total of 10 hours on Day 1 (5 + 4 + 1) and never violated the 11 hour limit. On Day 2, the driver only drove between the hours of 10:00 a.m. and 2:00 p.m. for a total of 4 hours, thus, no violation of the 11 hour limit occurred.
Explanation - 30 Minute Break: On Day 1, the calculation point for the 30 minute break provision is 10:00 a.m. In order to continue driving beyond 6:00 p.m. (8 hours after the initial starting calculation point) a 30 minute break off duty must be taken. Since the driver never took a break off duty, a 30 minute break violation occurred between the hours of 6:00 p.m. and 10:00 p.m. The driver then went on duty between the hours of 10:00 p.m. and 11:00 p.m., before violating the 30 minute break provision again by driving a CMV between 11:00 p.m. and Midnight. In order to remain legal, the driver should have taken his/her 30 minute break by 6:00 p.m. On Day 2, the driver was only on duty for a total of 7 consecutive hours which would not require a 30 minute break.
Explanation - 14 Hour Limit: After taking 10 consecutive hours off duty, the driver had 14 hours available beginning at 10:00 a.m. on Day 1. The driver switched into the sleeper berth at Midnight, exactly 14 hours later. Since the driver remained in the sleeper for 10 consecutive hours, the 14 hour limit reset and the new starting calculation point was then 10:00 a.m. on Day 2. The driver only remained on duty from the hours of 10:00 a.m. until 5:00 p.m. for a total of 7 hours of on duty time on Day 2. The driver remined legal on both days and no violation occurred.
What violation occurs on the below example?
Day 1
Day 2
- There is an 11 hour rule violation only
- There is a 14 hour rule violation only
- There is an 11 hour violation as well as a 30 minute break violation
- There is an 11 hour rule violation as well as a 14 hour rule violation
Quote From The CDL Manual:
Day 1
Day 2
Violations: There is a violation of the 11 and 14 hour rules at 2:00 p.m. on Day 1.
Explanation - 11 Hour Limit: After 10 consecutive hours off duty prior to the start of Day 1, the driver had 14 hours of on duty time available and 11 hours of driving time available, starting at Midnight on Day 1. The driver performed driving duties during the following times on Day 1:
- 1:00 a.m. to 5:00 a.m. (4 Hours)
- 6:00 a.m. to 10:00 a.m. (4 Hours)
- 11:00 a.m. to 3:00 p.m. (4 Hours)
Given the above breakdown of driving hours, we can see that the driver had operated a CMV for 12 total hours (4 + 4 + 4) on Day 1 without taking a 10 consecutive hour break. So on Day 1, the 11 hour driving limit has been exceeded and a violation occurred at 2:00 p.m. On Day 2, the driver began driving at 1:00 a.m. after taking 10 consecutive hours off duty. This reset the drivers 11 and 14 hour limits, bringing the new calculation point to 1:00 a.m. After driving for 5 hours between 1:00 a.m. and 6:00 a.m., the driver never returned to driving again. Therefore, no violation occurred on Day 2.
Explanation - 14 Hour Limit: After 10 consecutive hours off duty prior to the start of Day 1, the driver had 14 hours of on duty time available starting at Midnight on Day 1. While the driver would have been allowed to remain on duty indefinitely, no driving was allowed after 14 hours (2:00 p.m.).
A 30 minute break violation occurs on the below example. What day and time does the violation occur?
Day 1
Day 2
- Day 2 at 3:00 p.m.
- Day 2 at 3:00 a.m.
- Day 2 at 2:00 p.m.
- 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.
Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver was eligible to drive for up to 11 hours beginning at 10:00 a.m. on Day 1, but only drove 9 hours before entering the sleeper berth. With only 8 hours in the sleeper berth, the calculation point does not change, so the driver had 2 hours remaining to drive at 3:00 a.m. on Day 2. After reaching the 11 hour limit at 5:00 a.m. on Day 2, the driver went off duty for at least 2 consecutive hours, making him or her eligible for the split sleeper berth provision. In other words, the driver accumulated at least 10 hours of rest using a combination of at least 8 consecutive hours in the sleeper berth (7:00 p.m. on Day 1 to 3:00 a.m. on Day 2) and another off duty break of at least 2 consecutive hours (5:00 a.m. to 7:00 a.m. on Day 2). This moves the calculation point to the end of the first of the two periods of rest, or 3:00 a.m. With 2 hours spent driving after 3:00 a.m., the driver had 9 remaining hours by 7:00 a.m. and used only 8 additional hours.
Explanation - 30 Minute Break: The driver was required to take at least 30 consecutive minutes off duty by 6:00 p.m. on Day 1 before continuing to drive. Since the driver did not complete this requirement until an hour later, the driver was in violation from 6:00 p.m. until 7:00 p.m. on Day 1. On Day 2 the driver was on duty longer than 8 consecutive hours. This is perfectly legal. The rules only state that a driver may not drive after being on duty longer than 8 consecutive hours without first taking a 30 consecutive minute break. So remaining on duty without a break beyond 8 hours is legal unless any driving takes place. Since no driving took place after 3:00 p.m. on Day 2, no violation occurred on that day.
Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available at 10:00 a.m. on Day 1. By 7:00 p.m. on Day 1, the driver had 5 hours remaining (but only 2 hours of driving available). At 3:00 a.m. on Day 2, the driver still had 5 hours remaining, because any sleeper berth period of at least 8 but less than 10 consecutive hours is excluded from the 14 hour calculation. By 7:00 a.m. on Day 2, the driver had taken 8 consecutive hours in a sleeper berth plus another 2 consecutive hours off duty, making him or her eligible to use the split sleeper berth provision. This moves the 14 hour calculation point to 3:00 a.m. Therefore, at 7:00 a.m. on Day 2, the driver had 10 hours of time remaining (14 hour limit - 2 hours driving - 2 hours off duty = 10 total hours remaining) and used only 9 hours before the end of Day 2.
What violation occurs at 2:00 p.m. on this example?
- No violation occurs at 2:00 p.m.
- 11 hour rule violation
- 30 minute break violation
- 14 hour rule violation
Quote From The CDL Manual:
Violations: There is a 14 hour rule violation from 2:00 p.m. - 3:00 p.m.
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 reached the 11 hour limit at 3:00 p.m., at which point he or she entered the sleeper berth for 8 consecutive hours. The 8 hour sleeper berth period, combined with the earlier 2 hour off duty period (in this case, a combination of sleeper berth and off duty time beginning at 9:00 a.m.), made the driver eligible for the split sleeper berth provision. That is, 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 either off duty and/or in a sleeper berth. This moves the 11 hour calculation point to the end of the first of the two qualifying breaks, or 11:00 a.m. After 11:00 a.m., the driver accumulated 4 hours of driving time, leaving 7 hours to be used after 11:00 p.m.
Explanation - 30 Minute Break: Since the driver was never on duty beyond an 8 consecutive hour period without at least 30 minutes taken off duty, there are no violations of the 30 minute break provision in this example.
Explanation - 14 Hour Limit: After 10 consecutive hours off duty, the driver had 14 hours available beginning at midnight. The 14 hour limit was reached at 2:00 p.m., but the driver continued to drive, resulting in a 1 hour violation from 2:00 p.m. to 3:00 p.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 11:00 a.m. Counting forward from there (and excluding the 8 hour sleeper berth period), the driver had 10 hours remaining at 11:00 p.m. and had no further violations. The fact that the driver returned to compliance after 11:00 p.m. does not remove the violation from 2:00 p.m. - 3:00 p.m. The driver should have taken the break at 2:00 p.m. to avoid the violation.
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