Need. Civil contracts, administrative contracts in administrative law, labor contracts in labor law and international contracts in international law all require ID cards. The contract for signing a yoga card is a civil contract and requires an ID card. If you intend to apply for a yoga card signing contract, it is recommended to contact them before going to the yoga center or signing agency and ask them for the specific requirements of the required identification documents. This will ensure that all the necessary documents are ready and the formalities are smooth.