What are the designations for accredited Relocation professionals' organizations?

These are 2 that I know exist:
CRP - Certified Relocation Professional - A designation from the Employee Relocation Council (ERC) earned after demonstrating experience in the relocation industry and receiving a passing score on the certification exam administered by ERC.
MRP - Military Relocation Specialist - The goal of the Military Relocation Professional Certification course is to educate real estate professionals about working with current and former military service members to find the housing solutions that best suit their needs and take full advantage of military benefits and support. Students will learn how to provide the real estate services-at any stage in the service member’s military career-that meet the needs of this niche market and win future referrals. This course is designed to assist the licensee in gaining critical knowledge to develop their expertise when working with veterans and active duty military. To provide access to the resources needed for finding affordable, suitable and maintainable housing solutions for military personnel. This course will make the licensee aware of the most current updates and changes pertaining to military housing guidelines.

There is a great new certification by HAR:
CIPS: certified international property specialist
which might be relevant to what you are trying to achive.
best
francois@cozy-homes.com

I have heard goods things about the CRP class. You should call the HAR education office or check online for details.

There are two primary relocation specialist designations, and they are the GMS - Global Mobility Specialist, and the CRP - Ceritified Relocaiton Professional. However, there are also many other specific specialized courses and workshops a Realtor can take to become more educated in the field of global relocation.
To name a few:
1. International Business Ethics
2. Relocation Appraisal Training
3. Mobility Issues for China Today
4. Working Successfully in the Multicultural Environment of Latin America
5. The Intercultural Challenge: Doing Business Globally
6. Working Successfully within the Multicultural Environment of Modern Europe and India
Individuals involved in a corporate relocation should seek the professional services of a Relator who is a member of the Worldwide ERC.

http://www.worldwideerc.org/about_us/Pages/index.aspx

That would be The Certified Relocation Professional (CRP?) Designation