Area of Responsibility

CHAPTER 2

The Shanwick FIR forms a border with Gander at 030W west, Santa Maria at 45N and Reykjavík at 61N. The FIR also forms eastern borders with domestic FIR/UIRs: Scottish, Shannon, London and Brest and Madrid. All airspace within the FIR is Class A above FL55 and is referred to as the Shanwick OCA (Oceanic Control Area). Airspace below FL55 is Class G.

^{Figure 8 – Shanwick Oceanic Control Area}

2.1 Northern Oceanic Transition Area (NOTA)

Above FL55, the NOTA is delegated from Shanwick OAC to Shannon ACC. Shannon provides radar based ATS in this area.

^{Figure 9 – Northern Oceanic Transition Area}

2.2 Shannon Oceanic Transition Area (SOTA)

Above FL55, the SOTA is delegated from Shanwick OAC to Shannon ACC. Shannon provides radar based ATS in this area

^{Figure 10 – Shannon Oceanic Transition Area}

2.3 Brest Oceanic Transition Area (BOTA)

Above FL55, the BOTA is delegated from Shanwick OAC to Brest ACC. Brest provides radar based ATS in this area.

^{Figure 11 – Brest Oceanic Transition Area}

---

Last update: January 3, 2025