The rules drawn up by the Violinmakers Consortium "Antonio Stradivari" - CREMONA - the organisation managing the trademark - binds members of the consortium to the greatest moral integrity in the exercise of their craft. It also binds them to comply with current legislation governing labour law, marketing, competition and to use instrument making techniques and practices that will not harm the artistic image of traditional Cremona instrument making.
In order to reinforce these principles regarding the use of the collective trademark the consortium sets the rules by which the instrument makers belonging to the consortium and the license holders must abide in order to be able to use it:
• they must be registered with the craft register and must have specialised in one of the following musical instruments: violin, viola, violoncello, double bass, viola d'amore, viola da gamba, plucked instruments, harp and guitar;
• they must work and/or provide services in the province of Cremona.

Instruments must:
• be made without the use of the equipment or techniques used for large-scale industrial production;
• varnished without the use of spray paints, regardless of whether they are pressurised;
• be made and finished in the maker's workshop without the use of industrial semifinished products except for the following accessory parts: bridge, fingerboard, upper and lower nuts, chin rest, soundpost and purflings.
• be made from the following materials: spruce, maple, ebony, willow, poplar, rosewood, mahogany, cedar and/or other types of wood that are traditionally used to make the instruments;
• be made using the traditional Cremona craft techniques and subsequent developments.