This European Standard specifies the general requirements for the minimum quality level of services provided by organizations as well as the competencies of their involved staff charged with the planning, design, installation, commissioning, verification, handover or maintenance of fire safety systems and/or security systems, regardless whether these services are provided on-site or remotely. This European Standard shall be applied to services for fire safety systems and/or security systems, which are fire detection and fire alarm systems and security alarm systems including those parts of an alarm transmission system that the service provider has contractually accepted responsibility for (except social alarm systems, alarm receiving centers and the remaining parts of alarm transmission systems) as well as to fixed fire fighting systems and to combinations of such systems. This standard applies regardless of project size or organizational structure or size.