3.  
The certificate is to be used for export/import purposes, as well as for domestic purposes, and serves as an official certificate for components  from the manufacturer/maintenance organisation to users.  The certificate is not a delivery or shipping note. It should only be issued by organisations approved by CAD within the scope of the approval.

AMC M.614 (a) Maintenance records
1.  
Properly executed and retained records provide owners, operators and maintenance personnel with information  essential in controlling unscheduled  and scheduled maintenance, and trouble shooting to eliminate the need for re-inspection and rework to establish airworthiness.

The prime objective is to have secure and easily retrievable records with comprehensive and legible contents. The aircraft record  should  contain basic details of all serialised aircraft components  and all other  significant  aircraft  components  installed, to ensure traceability to such installed aircraft component documentation and associated MCAR-M.304 maintenance data.

2.  
The maintenance  record  can be either a paper or  computer  system or any combination of both. The records should remain legible throughout the required retention period.

3.  
Paper systems should use robust material which can withstand normal handling and filing.

4.  
Computer systems may be used to control maintenance and/or record details of maintenance work carried out. Computer systems used for maintenance should have at least one backup system which should be updated  at least  within 24 hours of any maintenance.  Each terminal is required to contain programme safeguards against the ability of unauthorised personnel to alter the database.

AMC M.614 (c) Maintenance records
Associated maintenance data is specific information such as repair and modification data. This does not necessarily  require  the retention of all aircraft maintenance  manual, component maintenance manual, parts catalogues etc issued by the TC holder or STC holder. Maintenance records should refer to the revision status of the data used.
AMC M.615(b) Privileges of the organisation
MCAR-M.615(b) refers to work carried out by another organisation which is not appropriately approved under MCAR-M Subpart F or MCAR-145 to carry out such tasks. 
The intent is to permit the acceptance of specialised maintenance services, such as, but not limited to, non-destructive testing, surface treatment, heat-treatment, welding, fabrication of specified parts for minor repairs and modifications, etc., without the need of Subpart F approval for those tasks.
The requirement that the organisation performing the specialised services must be “appropriately qualified” means that it should meet an officially recognised standard or, otherwise, it should be acceptable to CAD (through the approval of the Maintenance Organisation Manual).
“Under the control of the Subpart F organisation” means that the Subpart F organisation should investigate the capability of the subcontracted organisation (including qualifications, facilities, equipment and materials) and ensure that such organisation: 
.
Receives appropriate maintenance instructions and maintenance data for the task to be performed. 

.
Properly records the maintenance performed in the Subpart F airworthiness records. 

.
 Notifies the Subpart F organisation for any deviation or non-conformity, which has arisen during such maintenance. 

The certificate of release to service may be issued either at the subcontractors or at the organisation facility by authorised certifying staff, and always under the MCAR-M Subpart F organisation reference. Such staff would normally come from the MCAR-M Subpart F organisation but may otherwise be a person from the subcontractor who meets the MCAR-M Subpart F organisation certifying staff standard which itself is approved by CAD via the Maintenance Organisation Manual.
　
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