This Recommendation identifies requirements of capability exposure in the International Mobile Telecommunication 2020 (IMT-2020) network. In particular@ it first provides an overview and general aspects of capability exposure in the IMT-2020 network@ and then identifies requirements for the following key network capabilities: network slicing management@ edge computing (EC)@ network data analytics (NWDA)@ fixed and mobile convergence (FMC) and quality of service (QoS) capabilities. Relevant capability exposure scenarios in the IMT-2020 network are provided in Appendix I.