Who does the dyeing?

The dye extraction process is performed by workers under P’til Tekhelet’s supervision. The actual dyeing of wool with the Tekhelet is undertaken by P’til Tekhelet, (in Jerusalem and its environs) under the direction of its founder Rav Eliyahu Tavger, and in consultation with various Poskim. The wool is dyed expressly with the intent of the mitzvah, as dictated by halacha.