CERTIFICATIONS
Deref S.p.A. is ISO 9001 and ISO 14001 certified, and is duly authorized for waste recovery.
ISO 9001 Certification
Download PDF (226 KB)
ISO 14001 Certification
Download PDF (218 KB)
Quality policy
Download PDF (24 KB)
Environment policy
Download PDF (557 KB)
Waste recovery authorization
Pisa Plant | Download PDF (163 KB)
Waste recovery authorization
Castiglione in Teverina Plant | PDF (415 KB)
Waste recovery authorization
Vignole Borbera Plant | Download PDF (1345 KB)