This unit describes the skills and knowledge required to install underground enclosures and conduit, either direct buried or in pits, for new or cable maintenance tasks in access networks for outdoor installations within customer premises or in public locations permitted by the Australian Communications and Media Authority (ACMA).It applies to technical staff who install underground infrastructure for new and upgraded telecommunications cabling for domestic, commercial or industrial customers. Licensing, legislative, regulatory and certification requirements apply to telecommunications systems. Work functions in the occupational areas where this unit may be used are subject to regulatory requirements. All customer cabling work in the telecommunications, fire, security and data industries must be performed by a registered cabler. All cablers are required to register with an Australian Communications and Media Authority (ACMA) accredited registrar. Refer to the ICT Information and Communications Technology Training Package Companion Volume Implementation Guide or the relevant regulator for specific guidance on requirements.