18Chapter 10 of that decree, entitled ‘Other additional payments’, provides in particular:‘Article 501. Where, in the opinion of the NVWA agent attending, the work referred to in Article 3(2) [or Articles] 5, 8, 9, 10, 10a, 10b, 11, 13, 15, 19, 20, 21 or 22 takes longer than the time declared under Article 58(1)(c) and (d), the service provider shall be liable, in addition to the payments due under the article in question, for a payment consisting of an amount per quarter-hour of additional work carried out over and above the time declared.2. The amount per quarter-hour referred to in paragraph 1 shall be:a. EUR 27.52 for the work referred to [in Articles 3(2) and 8];b. EUR 27.52 for the work referred to in Article 5;c. EUR 36.79 for the work referred to in Articles 9, 10 and 10a;d. EUR 34.75 for the work referred to in Articles 10b, 11 and 13;e. EUR 29.06 for the work referred to in [Article 15(b) and Articles] 21 and 22;f. EUR 20.54 for the work referred to in Article 15(c);g. EUR 28.66 for the work referred to in Articles 19 and 20.3. Where, in the opinion of the NVWA agent attending, the work referred to in Article 17 takes longer than the time declared under Article 58(1)(c) and (d), the service provider shall be liable, in addition to the payments due under the article in question, for a payment of EUR 19.05.Article 511. Where the work referred to in [Article 3(2) or Articles] 5, 8, 9, 10, 10a, 10b, 11, 13, 15, 19, 20, 21 or 22 is carried out outside opening hours, the service provider shall be liable, in addition to the payments due under the article in question, for a payment consisting of an amount per quarter-hour of work carried out outside opening hours.2. The amount per quarter-hour referred to in paragraph 1 shall be:a. EUR 8.26 for the work referred to [in Articles 3(2) and 8];b. EUR 8.26 for the work referred to in Article 5;c. EUR 11.04 for the work referred to in Articles 9, 10 and 10a;d. EUR 10.43 for the work referred to in Articles 10b, 11 and 13;e. EUR 8.72 for the work referred to [in Article 15(b) and Articles] 21 and 22;f. EUR 6.16 for the work referred to in Article 15(c);g. EUR 8.60 for the work referred to in Articles 19 and 20.3. Where the work referred to in Article 17 is carried out outside opening hours, the service provider shall be liable, in addition to the payments due under that provision, for a payment of EUR 37.78 per quarter-hour of work carried out outside opening hours.1. Where, in the opinion of NVWA, it is necessary for the proper performance of the additional official control referred to in Article 47a to be carried out outside opening hours, the operator shall be liable to pay the undertaking which carries out the additional control, in addition to the amount referred to in Article 47a(1), (2) or (3), an amount consisting of 30% of the amount referred to in Article 47a(1), (2) or (3) per quarter-hour of inspection work carried out outside opening hours.2. Where, in the opinion of NVWA, it is necessary for the proper performance of the additional official control referred to in Article 48 to be carried out outside opening hours, the operator shall be liable to pay the undertaking which carries out the additional control, in addition to the amount referred to in Article 48, an amount consisting of 30% of the amount referred to in Article 48(1) per additional official control.Article 521. Where the work referred to in [Article 3(2) or Articles] 5, 8, 9, 10, 10a, 10b, 11, 13, 15, 19, 20, 21 or 22 is suspended or postponed, or is not carried out in full or in part, for reasons beyond the control of the person or persons responsible for the work, the service provider shall be liable for a payment consisting of an amount per quarter-hour:a. for each quarter-hour of the duration of the suspension or postponement for the person responsible for the work orb. for each quarter-hour of the duration of the work had it been carried out by the person who would have been responsible for the work in the opinion of the [Minister] according to the notification referred to in Article 57.2. The amount per quarter-hour referred to in paragraph 1 shall be:a. EUR 27.52 for the work referred to [in Articles 3(2) and 8];b. EUR 27.52 for the work referred to in Article 5;c. EUR 36.79 for the work referred to in Articles 9, 10 and 10a;d. EUR 34.75 for the work referred to in Articles 10b, 11 and 13;e. EUR 29.06 for the work referred to [in Article 15(b) and Articles] 21 and 22;f. EUR 20.54 for the work referred to in Article 15(c);g. EUR 28.66 for the work referred to in Articles 19 and 20.3. Where the work referred to in Article 17 is suspended or postponed, or is not carried out in full or in part, for reasons beyond the control of the person or persons responsible for the work, the service provider shall be liable for a payment of EUR 19.05.4 Where the request for the provision of a certificate, transit note, a certified copy of a certificate, transit note or declaration referred to in Article 14 is withdrawn, for reasons beyond the control of the person or persons responsible for the work, the service provider shall be liable for a payment equivalent to the payment which would have been due under Article 14 had the document been provided.5. The payments referred to in paragraphs (1), (2) and (3) shall be invoiced in addition to the payments due under the articles in question to the extent that the work concerned is postponed or has begun but has subsequently been suspended or has not been carried out in full.6. That article shall not apply if the notification referred to in Article 58(3) has been provided within the prescribed period.Article 531. To the extent that, for reasons beyond the control of the person or persons responsible for the work, the work referred to in this Article is suspended or postponed, or is not carried out in full or in part, the service provider shall be liable, in addition the payment due under Article 16, for a payment consisting of an amount equivalent to the applicable amount per quarter-hour referred to in Article 16,a. per quarter-hour of the duration of the suspension or postponement for the person responsible for the work, orb. per quarter-hour of the duration of the work had it been carried out by the person who would have been responsible for the work.2. In addition to the payment referred to in Article 16, the service provider shall be liable for a payment, for the work referred to in that article, of EUR 13 per quarter-hour devoted to that work by the official auxiliary referred to in that article where the period for which that work was requested in accordance with Article 57 was exceeded by more than a quarter-hour.3. In addition to the payment referred to in Article 16, the service provider shall be liable for a payment for the work referred to in that article which is carried out outside opening hours consisting of an amount of:a. EUR 1.50 per quarter-hour devoted to that work by the official auxiliary referred to in Article 16 on working days between 18.00 and 22.00;b. EUR 3.01 per quarter-hour devoted to that work by the official auxiliary referred to in Article 16 on working days between 22.00 and 0.00;c. EUR 3.01 per quarter-hour devoted to that work by the official auxiliary referred to in Article 16 on working days between 0.00 and 6.00.…8. For the purposes of paragraph 3, “opening hours” shall mean the period from 6.00 to 18.00 hours from Monday to Friday inclusive, excluding official public holidays.’