Airworthiness Manual Chapter 561 - Approved Manufacturers

Canadian Aviation Regulations (CARs) 2017-2

Content last revised: 2008/12/30


Appendix A
Authorized Release Certificate

(amended 2008/12/30)

(refer to subsection 561.10(5) of this standard)

The Authorized Release Certificate described in this Appendix conforms to a standardized, internationally recognized format for the release of both new and used (maintained) aeronautical products (herein also referred to as items or parts). When used to certify new parts, it provides a means for issuance of the statement of conformity required by CAR 561. When used to certify the maintenance of used parts, it forms a means for issuance of the maintenance release required by CAR 571.

Except where specifically provided in this document, these instructions relate only to the use of the Authorized Release Certificate to certify the airworthiness of new parts produced under CAR 561. For the requirements applicable to the certification of parts produced under the jurisdiction of other national authorities, refer to the applicable foreign regulations. For the release of used parts, attention is also drawn to Standard 571, which covers the use of the certificate as a maintenance release.

The Authorized Release Certificate (hereinafter referred to as “certificate”) is not an official Transport Canada form, but rather a template that may be used by industry organizations for the development of their own certificates. Subject to the conditions outlined in this Appendix, organizations may design their own certificates from scratch, or copy the blank examples and modify them as necessary. Blank samples may also be downloaded from the Transport Canada web site, where they are available in both *.xls and *.pdf formats.

Purpose and Use

The primary purpose of the certificate is to declare the airworthiness of new aeronautical products.

The certificate may be used for items intended for export, as well as for domestic purposes. It is considered to be valid worldwide but its acceptance will be dependent upon any specific notified import conditions. When using the certificate to satisfy such notified conditions, compliance must be certified according to a bilateral agreement or other working arrangement. In such cases, the ‘approved design data’ mentioned in this certificate means data approved by the civil aviation authority of the importing country. The certificate is not a delivery or shipping note.

While the Canadian version of the certificate is not an official Transport Canada form, it has been allocated the title “Form One” for harmonized international identification purposes. This title replaces the previous designation 24-0078.

Holders of Transport Canada approved manufacturer certificates may issue Authorized Release Certificates for new items produced under their own manufacturer certificate, including items produced by their suppliers that are subject to the manufacturer’s Quality Assurance Program oversight. They may also issue certificates for previously certified items (i.e., items received with a prior Authorized Release Certificate issued by an appropriately approved supplier) provided the component concerned is part of a higher assembly whose production is within the prime manufacturer certificate holder’s scope of approval.

Complete aircraft are not to be released using the certificate.

The certificate does not constitute approval to install the item on a particular aircraft, engine, or propeller but helps the end user determine the item’s airworthiness approval status.

A mixture of new and used items is not permitted on the same certificate.

A mixture of items certified in conformity with ‘approved data’ and to ‘non-approved data’ is not permitted on the same certificate.

General Format

The certificate must comply with the format shown in the following examples, including block numbers and the location of each block. The size of the blocks may vary to suit the individual application, but not to an extent that would make the certificate unrecognizable. The certificate must be in “landscape” format, but the overall size may be significantly increased or decreased so long as the certificate remains recognizable and legible. If in doubt, consult with Transport Canada.

All printing must be clear and legible to permit easy reading.

The certificate may either be pre-printed or computer generated, but in either case the printing of lines and characters must be clear and legible. Pre-printed wording is permitted in accordance with the examples, but no other certification statements are permitted. The preprinted statements on the certificate must appear in either English or French. Bilingual or multilingual formats may be used, provided one of the languages is either English or French.

The details to be entered on the certificate may be either machine/computer printed or hand-written using block letters and must permit easy reading. Abbreviations should be restricted to a minimum.

The user/installer responsibility statements may be placed on the bottom margin or on the reverse side of the certificate. The space remaining on the reverse side of the certificate may be used by the originator for any additional information but must not include any certification statement.


The certificate must accompany the item(s) described and correlation must be established between the certificate and the item(s). A copy of the certificate must be retained by the organization that raised it. Where both the certificate format and the data are entirely computer generated, retention by means of a secure database is acceptable, provided it is possible to generate a hard copy on request.

There is no restriction on the number of copies of the certificate sent to the customer.

The certificate may be attached to the certified item directly, or may be placed in an envelope for protection and the envelope attached to the item.

Lost Certificate

A request for the replacement of a certificate declared lost must come from the owner of the item. A file copy of the original certificate should be provided to the owner.

The replacement certificate serves as a historical record and not as a statement of the item’s current condition.

Errors on a Certificate

If an end user finds one or more errors on a certificate, they must identify them in writing to the originator. Originators may issue a corrected certificate provided they can verify and correct the errors.

The corrected certificate must have a new tracking number, signature and date.

The corrected certificate must contain an original signature in block 13b and the current date the signature is appended in block 13e.

A request for a corrected certificate may be honoured without verification of the item’s condition, but a corrected certificate is not a statement of current condition and should include an explanation in block 12, including a reference to the previous certificate. Both certificates should be retained according to the retention period applicable to the first certificate.

The corrected certificate serves as a historical record and not as a statement of the item’s current condition.

Completed Certificate

Refer to Figure 2 for an example of an appropriately completed certificate. When filling in the certificate, all entries must be in either English or French, and either typed or clearly printed in block letters in permanent ink. All blocks must be completed. Inapplicable items must be either marked “N/A” or struck out.

Once completed, the Authorized Release Certificate becomes part of the technical record for the item to which it relates, and eventually will become part of the technical record of the next higher assembly on which that item is installed. The certificate is therefore subject to all the applicable regulations related to manufacturing and technical records.

Completion of Certificate by the Originator

Block 1 – Approving Civil Aviation Authority (CAA) /Country

Block 1 is reserved for the name and country of the Civil Aviation Authority under whose jurisdiction the certificate is issued. The entry “Transport Canada” satisfies both requirements and is the only entry that may be made in respect of items produced under CAR 561. This text may be pre-printed on blank certificates.

Block 2 – Title block – The title “AUTHORIZED RELEASE CERTIFICATE —   FORM  ONE” should be pre-printed on the blank certificate, so no further entry is required in this block.

Block 3 – Form Tracking Number

Enter the unique number established by the numbering system/procedure of the approved manufacturer identified in block 4; this may include alpha/numeric characters. The originating organization must establish a tracking system to correlate the certificates with information on the released parts.

Block 4 – Organization Name and Address

Enter the full name and address of the approved manufacturer releasing the item(s) covered by the certificate.  Logos, etc., of the organization are permitted if they can be contained within the block. This information may be pre-printed on the blank certificates.

Block 5 – Work Order/Contract/Invoice

To facilitate traceability of the items, where applicable enter the customer’s work order number, contract number, invoice number, or similar reference; if none of these are applicable, enter “N/A”.

Block 6 – Item

The block is provided to permit easy cross-reference to other blocks, preventing ambiguity by the use of line item numbers. Block 6 must be completed where there is more than one line item and reference to the items is made in other blocks. Where necessary, it is permissible to add lightly ruled lines to aid in separating the information relating to each line number.

Block 7 – Description

Enter the name or description of the item. In the case of multiple items, enter the description for each item number listed in block 6. Preference should be given to the term used in the Instructions for Continued Airworthiness (Illustrated Parts Catalogue, Aircraft Maintenance Manual, Service Bulletin, etc).

Block 8 – Part Number

Enter the part number as it appears on the item (or tag/packaging). In the case of an engine or a propeller, the type designation may be used. In the case of multiple items, enter the description for each item number listed in block 6.

Block 9 – Quantity

State the quantity of each item. In the case of multiple items, enter the quantity of each item number listed in block 6.

Block 10 – Serial/Batch Number

If the item is required by the applicable design data to be identified with a serial number or equivalent identification, enter it in block 10. If no serial number or equivalent identification is applicable, a batch number or other equivalent unique identifying number may be entered. If no unique identifying number is available, enter “N/A”. Manufacturing in-process control numbers are not final serial numbers, and need not be entered.

Block 11 – Status/Work

Enter either “NEW” or “PROTOTYPE”.

Enter “NEW” for:

  1. 1. the production of a new item in conformity to the approved design data;

  2. 2. re-certification by the organization identified in block 4 of the original certificate following alteration or rectification work on an item, prior to its entry into service. Re-certification may be needed following incorporation of design changes, correction of defects, renewal of shelf life, etc. Details of the original release and the rectification work are to be entered in block 12;

  3. 3. re-certification by the organization identified in block 4, of the original certificate from “prototype” to “new”, following approval of the applicable design data, provided that the design data in question has not changed from that to which the product originally conformed. An explanation must be entered in block 12; or

  4. 4. the examination of a previously released new item, prior to entry into service, to establish airworthiness or conformity to a customer-specified standard or specification. An explanation of the basis of release and details of the original release must be entered in block 12.

Enter “PROTOTYPE” for the manufacture of a new item that conforms to data that is not yet approved. An explanation must be entered in block12.

Block 12 – Remarks

Enter in this block, either directly or by reference to supporting documentation, any information necessary for the user or installer to determine the airworthiness of an item. If necessary, a separate sheet may be used and referenced in this block.

In particular, enter details of any outstanding work required on or before installation of the item. If the item has been made or configured solely in accordance with specifications approved by a foreign airworthiness authority, and for some reason does not comply with Canadian requirements, include a statement to that effect.

Include any other information necessary to enable the installer to determine the condition and conformity of the item. Each statement must be clearly identified as to which item in block 6 it relates. If there is no statement, state “None”.

Some examples of conditions that would necessitate statements in block 12 are:

  1. 1. When the certificate is used for prototype purposes enter the following statement:



  2. 2. Re-certification of “PROTOTYPE” items to “NEW” once the applicable design data is approved. Enter the following statement:


  3. 3. When a corrected certificate is issued replacing a certificate with error(s) enter the following statement:


  4. 4. For TSO articles, state the applicable TSO.

  5. 5. Shelf life data.

  6. 6. Details of shortages or outstanding work.

  7. 7. When printing data from an electronic Authorized Release Certificate any data not appropriate in other blocks should be entered in this block.

Block 13a – Mark only one of the two boxes

  1. 1. Mark the “approved design data and are in a condition for safe operation” box if the item(s) were manufactured using approved design data and found to be in a condition for safe operation.

  2. 2. Mark the “non-approved design data specified in block 12” box if the item(s) were manufactured using applicable non-approved design data. Identify the applicable data in block 12.

  3. 3. Mixtures of items released against “approved” and “non-approved” design data are not permitted in the same certificate.

Block 13b - Signature

This space shall be completed with the signature of the authorized person. Only persons specifically authorized by the certificate holder in accordance with CAR 561 are permitted to sign this block. To aid recognition, a unique number identifying the authorized person may be added. Alternatives to a hand-written signature (such as a computer-generated signature facsimile) are only permitted when authorized by Transport Canada.

Signature in this block constitutes a statement of conformity pursuant to CAR 561.

Block 13c - Approved Organization Number

Enter the approved organization number that identifies the manufacturer certificate issued by the Minister.

Block 13d - Name

Enter the name of the person signing Block 13b, printed, typed, or written in a legible form.

Block 13e - Date

Enter the date on which block 13b is signed using the format dd/mmm/yyyy (dd = 2 digit day, mmm = first 3 letters of the month, yyyy =  4 digit year).

Blocks 14a through 14e

These blocks are reserved for maintenance purposes and are not used for manufacturing release. Manufacturers should shade, darken, or otherwise mark this area on the pre-printed blank certificates, to preclude inadvertent or unauthorized use.

Bottom margin or reverse side of certificate

Place the following statement on the pre-printed blank certificates to notify end users that they are not relieved of their responsibilities concerning the installation and use of any item accompanied by the form:

Installer Responsibilities

“This certificate does not constitute authority to install.

Installers working in accordance with the national regulations of a country other than that specified in block 1 must ensure that their regulations recognize certifications from the country specified.

Statements in blocks 13a or 14a do not constitute installation certification. In all cases, the technical record for the aircraft must contain an installation certification issued in accordance with the applicable national regulations before the aircraft may be flown.”

Authorized Release Certificate
Figure 1 - Authorized Release Certificate

Figure 2 - Example of completed Authorized Release Certificate

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