GNS 400W Series Installation Manual Page 1-9190-00356-08 Rev. G1.5 License RequirementsThe Telecommunications Act of 1996, effective February 8, 1996, provides the FCC discretion toeliminate radio station license requirements for aircraft and ships. The GNC 420W, GNC 420AW, GNS430W and GNS 430AW installations must comply with current transmitter licensing requirements. In theUS, to find out the specific details on whether a particular installation is exempt from licensing, pleasevisit the FCC web site http://wireless.fcc.gov/aviation. If an aircraft license is required, make applicationfor a license on FCC form 404, Application for Aircraft Radio Station License. The FCC also has a fax-on-demand service to provide forms by fax. Outside the US, contact the responsible telecommunicationauthority. The GNC 420W, GNC 420AW, GNS 430W and GNS 430AW owner accepts all responsibilityfor obtaining the proper licensing before using the transceiver. The maximum transmitting power,modulation identification, and frequency band information may be required for licensing and are detailedin Section 1.4.4.CAUTIONThe VHF transmitter in this equipment is guaranteed to meet Federal CommunicationsCommission acceptance over the operating temperature range. Modifications notexpressly approved by Garmin could invalidate the license and make it unlawful tooperate the equipment.