Comes is qualified for public works based on SOA requirements for the categories of general works OG1 - OG9 - OG10 - OG11 and OS30 categories of specialized works.
Comes also owns the BS OHSAS 18001: 2007 for managing health and safety of workers, the certificate UNI EN ISO 9001: 2008 for the quality, and the certificate UNI EN ISO 14001: 2004 for environmental management. It 'also qualified according to the law 46/90 art.1 paragraph 1 letter. a, b, c, d, e, f, g.
I certificati e le qualifiche COMES:
BS OHSAS 18001:2007 Management of health and safety of workers Certificate
UNI EN ISO 9001:2015 Quality Certificate
UNI EN ISO 14001:2015 Environmental management Certificate

SOA Qualification to the execution of public works Certificate
For general categories OG1 (I), OG9 (III), OG10 (III-BIS), OG11 (III) and those specialized OS30 (VII)

CATEGORIES AND RESULTS OF QUALIFICATIONS SOA: Categories | Description | Ranking
| Amount
|
OG1 | Civil and industrial buildings
| I | UP TO 258.000 |
OG9 | Plants for the production of electric energy | III | UP TO 1.033.000 |
OG10 | Plants for the high / medium voltage transformation and for the distribution of electrical energy into alternating current and direct and public lighting systems
| III-BIS | UP TO 1.500.000 |
OG11 | Technological plants
| III | UP TO 1.033.000 |
OS30 | Internal electrical systems, telephone, radio and television systems | VII | UP TO 15.494.000 |