Is it necessary to wear a harness in an MCWP?

It is not normally necessary for personnel working from a vertical lift to wear fall protection equipment, other than in exceptional circumstances. 

During installation, alteration and dismantling

The work platform of an MCWP is provided with guard-rails and toe boards to protect the occupants from falling. Consequently the use of harnesses is not required during use of MCWPs unless any part of the guard-rail system has been removed by a competent person (e.g. to enhance access to the façade of a building), in which case a risk assessment should be carried out to ascertain the need for, and specification of, fall arrest/work restraint equipment. The risk of falling during installation, alteration and dismantling should be addressed in the installation, alteration and dismantling method statement.

In the event of a risk assessment requiring an anchor point for a harness, the manufacturer should be consulted.

Before attaching fall protection equipment to the work platform, the user organisation‑appointed person should ascertain both the location and suitability of anchor points.