- Design made-to-order for private clients, with one or more fittings.
- Have a workshop (atelier) in Paris that employs at least fifteen staff members full-time.
- Must have twenty, full-time technical people in at least one workshop (atelier).
- Every season, present a collection of at least fifty original designs to the public, both day and evening garments, in January and July of each year.
Studying techniques