Purpos: This unit will implement professional supervision and regulation to ensure the safety and security of civil aviation within the framework of the rights transferred from the head of the General Director of Civil Aviation /13 regulations of civil aviation/.
Legal framework: Chicago Convention on International Civil Aviation, Mongolia’s Law on Civil Aviation and other laws, practical recommendations issued by the International Civil Aviation Organization, MCAR, aviation standard requirements, orders, procedures and instructions of the head of the CAA.
Activities: Certification of civil aircraft, certification of aircraft technical service organizations, aircraft fuel supply organizations, and compliance with Civil Aviation Law and Regulation. Certification of air carriers, agricultural and amateur flight organizations and flying clubs will be carried out in cooperation with the Flight Standard, Operations Oversight Division. It includes:

• certification
• scheduled inspection
• unplanned inspection
• document control
• unannounced inspections

Organizational Structure of the Division: Total staff – 8

• Head of the airworthiness division and aviation safety inspector
• Senior inspector of aviation safety oversight and certification in charge of aircraft maintenance organization
• Senior inspector of aviation safety certification and continuing airworthiness
• Senior inspector of aviation safety inspection responsible for aircraft type certification and aircraft registration certificate
• Aviation safety inspector in charge of fuel quality
• Aviation safety inspector of airworthiness
• Airworthiness officer

Responsibilities: Overseeing how air carriers ensure the continued airworthiness of aircraft. It includes:

• registration of aircraft for civil aviation purposes in the Mongolian registry, making changes to the registry, or removing it from the registry;
• aircraft airworthiness certification and maintenance control;
• approval of the major modification and repair;
• granting permission to perform maintenance on aircraft;
• control the operation of the aircraft maintenance organization;
• control the operation of the aircraft fuel supply organization;
• control of aircraft fuel supply operations at local airports;
• review and verification of aircraft technical service programs, operating instructions and technological documents of fuel supply and technical service organizations;
• supervising the operations of air carriers, agricultural and amateur flight organizations, flying clubs in cooperation with the Flight standard, operations oversight division;

DURATION OF LICENSES ISSUED BY THE AIRWORTHINESS DEPARTMENT

№	The name of the certificate	Permission type	Reasoning	Time
1	Aircraft Maintenance Organizations Certification	Special License	Part-145; Annex 8	up to five years.
2	Type Certificates	One-time approval	Part-21	non terminating unless is suspended or revoked.
3	Aircraft Registration Certificates	One-time approval	Part-47; Annex 7	non terminating unless is suspended or revoked.
4	Aircraft Deregistration Certificates	One-time approval	Part-47; Annex 7	non terminating
5	Special Flight Permit	One-time approval	Part-21; Annex 8	non terminating unless is suspended or revoked.
6	Export Airworthiness Certificates	One-time approval	Part-21; Annex 8	non terminating
7	Noise Certificate	One-time approval	Annex 16.1	non terminating unless is suspended or revoked.
8	Radio Station License	One-time approval	Part-91	non terminating unless is suspended or revoked.
9	Airworthiness Certificates	Simple consent	Part-21; Annex 8	the aircraft is performed in accordance with the applicable requirements of Parts 91 and 43 unless the certificate has expired, or is suspended or revoked
10	Certification of aviation petroleum supply organization	Simple consent	Part-144	up to three years.