Helsinki FIR Letter of Agreements

The following Letter of Agreements (LoA:s) should be used to the extent possible to achieve a high level of uniformity in respect of local operational requirements throughout the Nordic Region.

Short term temporary deviations will not be laid down in the Letter of Agreement. Modifications resulting to a new Version Number are marked with revision lines.

Conventions

The term "Not Applicable" will indicate that either an entire Annex or a particular paragraph does not apply.

In order to classify the strength of the operational requirements and principles laid down in the agreement, the following conventions are used:

• The word "shall" or "must" denotes a mandatory requirement
• The word "should" denotes a preferred requirement
• The word "may" denotes an option
• The word "will" denotes a statement of intent