You can start directly with any level. It is not necessary to complete lower levels to start with higher levels.
Note: Please make sure you complete your submission in time!
Effective June 2023, some of the terminology is changed to align with the 2030 Impact Strategy. Certification levels within Supplier to Zero for non-signatory suppliers terminology has changed from Foundational, Progressive, and Aspirational Level to Supplier to Zero Levels 1, 2, and 3.
For more information regarding the updated terminology, please refer to the following Knowledge-Base article: New Terminology.