| Subject | English | French |
| gen. | offers which are regular, complying with the conditions laid down and comparable | offres régulières,conformes et comparables |
| construct. | regular conditions | régime régulier |
| earth.sc., transp., construct. | regular ground water condition | situation normale de la nappe aquifère |
| earth.sc., transp., construct. | regular ground water condition | situation normale de la nappe phréatique |
| earth.sc., transp., construct. | regular phreatic water condition | situation normale de la nappe aquifère |
| earth.sc., transp., construct. | regular phreatic water condition | situation normale de la nappe phréatique |