This document concernes the Regional Agreement of the MF Maritime Mobile and Aeronautical Radionavigation Services of Region 1. The provisions of this Agreement apply in Region 1 to the following services in the bands allocated to them under Article 8 of the Radio Regulations: a) 415 - 435 kHz allocated to the aeronautical radionavigation service on a primary basis and to the maritime mobile service on a permitted basis; b) 435 - 495 and 505 - 526.5 kHz allocated to the maritime mobile service on a primary basis; c) 505 - 526.5 kHz allocated to the aeronautical radionavigation service on a permitted basis; d) 1 606.5 - 1 625 kHz, 1 635 - 1 800 kHz and 2 045 - 2 160 kHz allocated to the maritime mobile service on a primary basis. These provisions also apply to: e) Fixed and land mobile services to which the bands 1 606.5 - 1 625 kHz, 1 635 - 1 800 kHz and 2 045 - 2 160 kHz are allocated on a permitted basis (primary in the countries listed in No. 483 of the Radio Regulations); f) the radiodetermination service (No. 484), after successful application of the procedure of Article 14 of the Radio Regulations.