Regulation 103 ObstructionI1 England, Wales and Scotland Original text. Later amendments are not shown. No person in charge of a motor vehicle or trailer shall cause or permit the vehicle to stand on a road so as to cause any unnecessary obstruction of the road. Annotations Commencement I1 Reg. 103 in force at 11.8.1986, see reg. 1 ← Regulation 102 Regulation 103 Regulation 104 →