Warn workers and visitors of active agricultural equipment with this Machinery In Operation Sign, designed for farms and rural properties. Featuring a bold yellow triangle and clear black pictogram, this farming hazard sign ensures maximum visibility and compliance with UK workplace safety guidelines. It’s manufactured in Britain using durable, weather-resistant materials, ideal for outdoor environments exposed to mud, dust and rain. Use this sign to reduce the risk of accidents involving tractors, harvesters and other agricultural machinery in use. Suitable for mounting on gates, fences, sheds, or machinery sheds, this warning sign helps maintain control zones around operational equipment. Part of our best-selling farm hazard signs collection, trusted by agricultural businesses nationwide.