From JSR 318, I think we can skip these chapters, since they are not related to EJB 3.1 and related to persistence:
Chapter 6 Persistence
Chapter 7 Client view of an EJB 2.1 Entity Bean
Chaper 8 EJB 2.1 Entity Bean component contract for container-managed persistence
Chapter 9 EJB QL: EJB 2.1 Query language for container managed persistence query methods
Chapter 10: EJB 2.1 Entity bean component contract for Bean managed Persistence
Chapter 11 : EJB 1.1 Enity bean component contract for container-manager persistence
How about these chapters ?
Chapter 15: support for distributed interoperability
Chapter 21 Runtime environment?
Chapter 22 Embedded usage
Chapter 23 Responsibilities of EJB roles