North American Product Classification System (NAPCS) Canada 2017 Version 2.0
- 773 - Specialized design services
- 77311 - Specialized design services
- 773111 - Interior design services
- 7731111 - Residential interior design services
- 7731112 - Non-residential interior design services
- 7731113 - Historic building interior design services
- 7731114 - Other interior design services, n.e.c.
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