4. In this Chapter—

“place of work” means a place of work intended to house workstations on the premises of an undertaking and any other place within the area of the undertaking to which an employee has access in the course of his or her employment but does not include—

(a) means of transport used outside the undertaking or a place of work inside a means of transport,

(b) temporary or mobile work sites, including construction sites,

(c) extractive industries,

(d) fishing boats,

(e) fields, woods and land forming part of an agricultural or forestry undertaking but situated away from the undertaking's buildings.