The term 'vintage' refers to devices older than five years but less than seven. They are eligible for repair only in California. Obsolete products are not eligible for repair whatsoever. The original iPhone will be classified as 'vintage' in the U.S. and obsolete in Asia-Pacific, Canada, Europe, Japan, and at Apple Retail Stores.
The document attached below reveals the full list of products that will reach vintage status and obsolete status.
Take a look...