41. The powers conferred on the Department by this Part shall, unless the context otherwise requires, be construed as being in addition to and not in derogation of the powers conferred on the Department by any other Part of this Order or by any other statutory provision.
42. The expressions listed below are defined or otherwise fall to be construed for the purposes of this Part in accordance with the provisions indicated—
| concession agreement | Article 23(1) |
| concessionaire | Articles 23(1) and 27(1) |
| designation order | Article 15(1) |
| extension toll order | Article 34(1) |
| road subject to a concession | Article 23(2) |
| toll order | Article 28(1) |
| toll period | Article 29(1) |