Revision for “Proper use of ‘Shall Should May Will Advice’” created on October 17, 2013 @ 03:29:50
Proper use of ‘Shall Should May Will Advice’
<strong>Proper use of ‘Shall Should May Will Advice’
Any specification for physical characteristics, configuration, matériel, performance, personnel or procedure, the uniform application of which is recognized as necessary for the safety or regularity of international air navigation and to which Contracting States will conform in accordance with the Convention; in the event of impossibility of compliance, notification to the Council is compulsory under Article 38.
EUROCAE ED-120 and ED-110B
Indicates a mandated criterion; i.e. compliance with the criterion is mandatory and no alternative may be applied.
3. “May” means a procedure, or instruction is permissive, optional or alternative.
4. “Will” is only used for informative or descriptive writing, e.g. ”transfer of CPDLC will coincide ….” is not an instruction to the controller.
5. “Instruct” indicates that an ATM operator is required to issue binding positive commands to the addressee.
6. “Advise” means that an ATM operator is required to suggest a non-binding behaviour to the addressee;