For the duration of a shift work allowance the adjustment allowance for 4 consecutive periods (in months) is:
| Length of shift work | Adjustment payment in percentage of the base amount for shift work allowance during 4 consecutive periods, expressed in months |
||||
| From | To | 80% | 60% | 40% | 20% |
| ½ year | ¾ year | 1 | 1 | 1 | 1 |
| ¾ year | 1 year | 2 | 2 | 2 | 2 |
| 1 year | 2 years | 3 | 3 | 3 | 3 |
| 2 years | 3 years | 4 | 4 | 4 | 4 |
| 3 years | 4 years | 5 | 5 | 5 | 5 |
| 4 years | 5 years | 6 | 6 | 6 | 6 |
| 5 years | 6 years | 7 | 7 | 7 | 7 |
| 6 years | 7 years | 8 | 8 | 8 | 8 |
| 7 years | 8 years | 9 | 9 | 9 | 9 |
| 8 years | 9 years | 10 | 10 | 10 | 10 |
| 9 years | 10 years | 11 | 11 | 11 | 11 |
| 10 years | 15 years | 12 | 12 | 12 | 12 |
| 15 years | 20 years | 15 | 15 | 15 | 15 |
| 20 years | or longer | 18 | 18 | 18 | 18 |
The base shift work allowance for the calculation of the adjustment allowance is calculated by taking the average shift work allowance received in the 12 months preceding the termination or the reduction of the allowance over the period in which the allowance was received.
If you are aged 60 years and older, and have been receiving a shift work allowance for ten years or more as referred to in this article, you will be paid adjustment allowance equal to this compensation, which will remain unchanged up to the date of retirement.
If you reach the age of 60 years during the term of an adjustment allowance arising from an allowance that has been payable for ten years or more, the adjustment allowance payable on your 60th birthday will continue unchanged until your date of retirement.
If you are 55 years or older, and have been receiving an allowance as referred to in this article for 15 years or more, then the adjustment allowance will be at least 75% of that which is stipulated for employees of 60 years old.