The Path Computation Element (PCE) has been identified as an appropriate technology for the determination of the paths of point- to-multipoint (P2MP) TE LSPs. The extensions described in [I-D.ietf-pce-stateful-pce] provide stateful control of Multiprotocol Label Switching (MPLS) Traffic Engineering Label Switched Paths (TE LSP) via PCE communication Protocol (PCEP), for a model where the Path Computation Client (PCC) delegates control over one or more locally configured LSPs to the PCE. Further [I-D.ietf-pce-pce-initiated-lsp] describes the creation and deletion of PCE-initiated LSPs under the stateful PCE model. This document provides extensions required for PCEP so as to enable the usage of a stateful PCE initiation capability in recommending point-to- multipoint (P2MP) TE LSP instantiation.