There is a certification from IBM tests your knowledge about Unified Process, but not design specially for Unified Process. The certification
test is IBM 486, Objected-Oriented Analysis/Design and UML.
Regards,
SCJP2<br />IBM Object-Oriented Analysis/Design & UML<br />IBM Certified Developer - XML and Related Technologies<br />IBM Test 483 J2EE Connectivity<br />IBM Certified Specialist - IBM WebSphere Application Server, Advanced Single Server Edition for Multiplatforms, V4.0