Thanks, IC! I'm a big fan of continuing education in whatever field one is in, and the MCC accreditation is a nice by-product of that passion.
CLIA is not just an accreditation organization. It's a cruise trade association that also offers education and accreditation. Here is their brief summary:
Cruise Lines International Association is the world’s largest cruise association and is dedicated to the promotion and growth of the cruise industry. CLIA is composed of 24 of the major cruise lines serving North America and is an organization that operates pursuant to an agreement filed with the Federal Maritime Commission under the Shipping Act of 1984 and serves as a non-governmental consultative organization to the International Maritime Organization, an agency of the United Nations.
You can see more information about CLIA at their web site HERE.