This document contains the European Route Network Improvement Plan – Part 3 – Airspace Management Guidelines - The ASM Handbook - Airspace Management Handbook for the Application of the Concept of the Flexible Use of Airspace.

It is in response to the COMMISSION REGULATION (EU) No 677/2011 of 7 July 2011 (laying down the detailed rules for the implementation of air traffic management (ATM) network functions and amending Regulation (EU) No 691/2010).

It specifies the general Airspace Management (ASM) functions and Air Traffic Management (ATM) procedures needed to apply and fully exploit the Concept of the Flexible Use of Airspace.