ISO 22199:2006 specifies the emission limits and test conditions for lifts, escalators and passenger conveyors, which are permanently installed in buildings and for which ISO/TC 178 has direct responsibility for the production of International Standards, in relation to electromagnetic interference. These limits however, might not provide full protection against disturbances caused to radio and TV reception when such equipment is used within distances given in ISO 22199:2006.Since lifts travel large vertical distances in buildings, it becomes impracticable to test the installation either in a test laboratory or in situ (where the uncontrolled environment can also influence the test procedures and results). Likewise, due to practical restrictions imposed by the lift car internal dimensions, it is impracticable to test the lift car from within. Similar considerations regarding dimensions apply equally to the testing of escalators and passenger conveyors. Therefore, ISO 22199:2006 applies to the sub-systems and/or apparatus of lifts, escalators and passenger conveyors, an assembly of which will comprise an installation, the boundaries of which are indicated by example in Figures 2 and 3. However, ISO 22199:2006 does not apply to lighting apparatus and also other services already proven to be in conformity with national EMC regulations