The JBoss Certified Developer (JBCD) program now includes the JBCD-Persistence certification for developers using JPA with Hibernate.
This certification provides an official, impartial validation of a developer's technical skills based on their ability to handle real-world development tasks rather than simply answering a series of multiple choice questions.
The certification can also provide another input for organizations that are looking for qualified developers to work on enterprise Java applications using JPA with Hibernate.

See http://www.redhat.com/certification/jbcd_persistence/ for more details.