If you're interested in becoming a sommelier, you've probably come across the initials "CMS".
CMS stands for the Court of Master Sommeliers, one of the most prestigious wine education organisations in the world. Unlike programmes that focus primarily on wine knowledge, CMS certifications are designed specifically for hospitality professionals and place a strong emphasis on service, tasting, and practical restaurant skills.
What Is the Court of Master Sommeliers?
The Court of Master Sommeliers (CMS) was established in 1977 with the goal of improving beverage service standards in hospitality.
Today, its qualifications are recognised internationally and are particularly respected within fine dining restaurants, luxury hotels and the sommelier profession.
The CMS pathway is designed to develop expertise in three key areas:
- Theory
- Tasting
- Service
Unlike many wine qualifications, candidates are expected not only to understand wine but also to demonstrate practical restaurant service skills under examination conditions.
The Four CMS Certification Levels
The CMS pathway consists of four levels.
Level 1: Introductory Sommelier
This is the entry point into the CMS programme.
Level 2: Certified Sommelier
The Certified Sommelier qualification is the first serious milestone.
Level 3: Advanced Sommelier
The Advanced Sommelier certification represents a significant jump in difficulty. Candidates are expected to demonstrate extensive knowledge across the world of wine as well as strong tasting and service abilities.
Level 4: Master Sommelier Diploma
The Master Sommelier Diploma is one of the most challenging wine qualifications in the world.
Candidates must pass separate examinations in:
- Theory
- Tasting
- Service
The pass rate is extremely low, and successful candidates are recognised among the world's leading wine professionals. Today, only a few hundred individuals worldwide hold the Master Sommelier title.
Is CMS worth it?
For anyone pursuing a career as a sommelier, absolutely. CMS certifications are highly respected within hospitality and demonstrate expertise in wine knowledge, tasting, and service.
Final tip
A strong understanding of wine theory is essential to succeed in CMS examinations. Amble Wine workbooks can help reinforce and anchor your knowledge through active learning, whether you're studying wine maps of the world, grape varieties, or reviewing wine production.
To test your overall wine knowledge, Amble Wine quiz book contains more than 1 000 questions covering wine production, wine regions, and tasting, making it a valuable revision tool for CMS theory preparation.



