The Cabildo of Tenerife, through its department for natural environment, sustainability, security and emergencies, has produced a guide for users of caravan service areas being created at the island's waste recycling points. The instructions are in place at black and grey water disposal zones and drinking water refill points at the Malpaso logistics centre, and the recycling points in Arona, Jagua (Santa Cruz de Tenerife), La Guancha and Buenavista. Users must provide their details to operators, park in the marked area, switch off the engine and keep companions and minors outside the work area. Only drinking water supply, grey water disposal, cassette emptying and hose rinsing are permitted; washing vehicles, people, animals or objects is prohibited. The guide will be introduced progressively at new sites as caravan service areas are rolled out.