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ANNEX III U.K.LIMIT VALUES

The sound level measured in accordance with the provisions of Annex II, mathematically rounded to the nearest integer value, shall not exceed the following limits:

a M1 vehicles derived from N1 vehicles: M1 vehicles with an R point > 850 mm from the ground and a total permissible laden mass more than 2 500 kg have to fulfil the limit values of N1 (2 500 kg < mass ≤ 3 500 kg).
b + two years for new vehicle type and + one year for new vehicles registration.
Limit values shall be increased by 1dB (2 dB(A) for N3 and M3 categories) for vehicles that meet the relevant definition for off-road vehicles set out in point 4 of Part A of Annex II to Directive 2007/46/EC.
For M1 vehicles the increased limit values for off-road vehicles are only valid if the technically permissible maximum laden mass > 2 tonnes.
Limit values shall be increased by 2 db(A) for wheelchair accessible vehicles and armoured vehicles, as defined in Annex II to Directive 2007/46/EC.
Vehicle category	Description of vehicle category	Limit values expressed in dB(A)[decibels (A)]
		Phase 1 applicable for new vehicle types from 1 July 2016	Phase 2 applicable for new vehicle type from 1 July 2020 and for first registration from 1 July 2022	Phase 3 applicable for new vehicle type from 1 July 2024 and for first registration from 1 July 2026
M	Vehicles used for the carriage of passengers
M1	power to mass ratio ≤ 120 kW/1 000 kg	72a	70a	68a
M1	120 kW/1 000 kg < power to mass ratio ≤ 160 kW/1 000 kg	73	71	69
M1	160 kW/1 000 kg < power to mass ratio	75	73	71
M1	power to mass ratio > 200 kW/1 000 kg number of seats ≤ 4 R point of driver seat ≤ 450 mm from the ground	75	74	72
M2	mass ≤ 2 500 kg	72	70	69
M2	2500 kg < mass ≤ 3 500 kg	74	72	71
M2	3500 kg < mass ≤ 5 000 kg; rated engine power ≤ 135 kW	75	73	72
M2	3500 kg < mass ≤ 5 000 kg; rated engine power > 135 kW	75	74	72
M3	rated engine power ≤ 150 kW	76	74	73b
M3	150 kW <rated engine power ≤ 250 kW	78	77	76b
M3	rated engine power > 250 kW	80	78	77b
N	Vehicles used for the carriage of goods
N1	mass ≤ 2 500 kg	72	71	69
N1	2 500 kg < mass ≤ 3 500 kg	74	73	71
N2	rated engine power ≤ 135 kW	77	75b	74b
N2	rated engine power > 135 kW	78	76b	75b
N3	rated engine power ≤ 150 kW	79	77	76b
N3	150 kW < rated engine power ≤ 250 kW	81	79	77b
N3	rated engine power > 250 kW	82	81	79b