The Marine Chemists of the Studio Associato Pettenati - Turchetto (Pettenati - Turchetto Associated Marine Chemists) operate within the Maritime Directorate of Trieste which includes the Harbour-master's office of Trieste and Monfalcone, the Maritime District of Grado and Porto Nogaro and the Local Maritime Offices of Marano Lagunare and Lignano Sabbiadoro.

The activity of advising for the chemical risk assessment in not harbour within is managed in the Regions Friuli Venezia-Giulia and Veneto.