Truck

Spray Suppression

Introduction
Spray Suppression Fitment Regulation 64 Road Vehicles (Construction and Use) Regulations 1986 states that suitable spray suppression equipment (to British Standard or EC 91/226) should be fitted on each axle. There are exceptions to these requirements with a full breakdown of what vehicles spray suppression is applied to, and the exempt vehicles - see below.

Maintenance Regulation 65 Road Vehicles (Construction and Use) Regulations 1986 states that every part of every spray suppression device required to be fitted by regulation 64 shall at all times when the vehicle is on the road be maintained free from any obvious defect which would be likely to affect adversely the effectiveness of the device.

Vehicle Types Affected
Spray suppression and containment equipment must be fitted to many vehicles. Apart from certain exemptions the vehicles affected are as follows:

Key Information
Key Information

EC Regulation

Vehicles over 7.5 tonnes and Trailers exceeding 3.75 tonne GVW after 10 April 1992

Equipment must be fitted in relation to the wheels on each axle and must meet the British Standard specification for spray reducing devices for heavy goods vehicles (BS AU200). Alternatively, vehicles may be fitted with spray suppression devices type approved to the EU standard in Directive 91/226. This performance standard is marginally higher than the British Standard. BS AU200 stresses three aspects of design as follows.

Three categories of suppression and containment systems are covered by the standard, which are that:

The equipment must at all times - when the vehicle is on a road - be maintained free from any obvious defect likely to limit its effectiveness.

The Department for Transport have obtained legal opinion that wheel flaps must be, at least, as wide as the tyre(s) and not just the tyre tread.

Vehicle Types Exempt
There are two areas of concession and exemption. Any containment device fitted before I January 1985 is considered satisfactory if it conforms substantially to BS AU200, with the following vehicles being exempt from these requirements:

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