CALIFEL L.td possesses  the Certificate of Qualification for the execution of Public Works No. 8794/23/00, issued by ATTICO SOA L.td on 21/12/2009, for the following categories and classifications:
 

Category

Classification

 OG 1

Civil and industrial buildings IV

 OG 11

Technological plants V
 OS 3 Waterworks, kitchens, laundries III
 OS 14 Waste disposal and recycling plants IV
 OS 28 Heating and air conditioning systems V
 OS 30 Internal electric, telephone, radio-telephone and television systems III
Qualification for PLANNING AND CONSTRUCTION SERVICES up to the VIII classification.