A method for enabling 5G transport quality of service (QoS) includes receiving a service discovery request from a consumer network function (NF) or service communications proxy (SCP). The method further includes accessing a 5G transport QoS policy database and determining that a 5G transport QoS policy applies to the service discovery request. The method further includes, in response to determining that a 5G transport QoS policy applies to the discovery request, generating a service discovery response message and inserting a network layer QoS value for implementing the policy in the service discovery response message. The method further includes transmitting the service discovery response message to the consumer NF or SCP.