Chapter 4. NAVAIDs ▶ Section 1. General 4-1-1. PURPOSE 4-1-2. POLICY 4-1-3. RESPONSIBILITY FOR FREQUENCY SELECTION 4-1-4. GOVERNING CRITERIA 4-1-5. LONG-RANGE PLANNING 4-1-6. PROPOSED CHANGES ▶ Section 2. FAA NAVAIDs 4-2-1. POLICY 4-2-2. COORDINATION 4-2-3. INFORMAL AIRSPACE MEETINGS 4-2-4. APPROVAL AUTHORITY 4-2-5. DISTRIBUTION 4-2-6. COMMISSIONING DATE 4-2-7. PROCESSING REGULATORY ACTIONS ▶ Section 3. Military NAVAIDs 4-3-1. POLICY 4-3-2. COORDINATION WITH MILITARY 4-3-3. EVALUATION BY TECHNICAL OPERATIONS SERVICES OFFICE 4-3-4. CIRCULARIZATION 4-3-5. DETERMINATION RESPONSIBILITY 4-3-6. NOTIFICATION AND DISTRIBUTION ▶ Section 4. Non-Federal NAVAIDs 4-4-1. POLICY 4-4-2. REQUEST FOR ESTABLISHMENT 4-4-3. RESPONSIBILITY 4-4-4. EXTERNAL COORDINATION 4-4-5. COMPLETION AND NOTIFICATION PROCESS 4-4-6. AERONAUTICAL STUDY RETENTION AND ARCHIVING ▶ Section 5. Discontinuance of FAA NAVAIDs 4-5-1. POLICY 4-5-2. RESPONSIBILITIES 4-5-3. COORDINATION OF PROPOSALS 4-5-4. OBTAINING APPROVAL 4-5-5. DISCONTINUANCE ACTION 4-5-6. CANCELLATION OF CONTROLLED AIRSPACE AND INSTRUMENT PROCEDURES 4-5-7. DECOMMISSIONING DATE 4-5-8. DISCONTINUANCE OF NAVAIDs INCLUDED IN ICAO PLANS 4-5-9. INTERNATIONAL STAFF NOTIFICATION ▶ Section 6. Discontinuance of Military and Non-Federal NAVAIDs 4-6-1. POLICY 4-6-2. RESPONSIBILITY 4-6-3. ACTION PRIOR TO DISCONTINUANCE 4-6-4. DISCONTINUANCE OF NAVAIDs INCLUDED IN ICAO PLANS