Visitors of all ages arriving in Canada by air require a passport or passport equivalent, such as a NEXUS card. If you need a passport right away, get a passport within 24 hrs with Rushmypassport.com.
OTC means Over the Counter, which is a test that you can buy at the store and do not need a prescription for. Many medication are called OTC which means you can just go by them without a doctor's prescription. Or it could also be an OTC stock trade.
Oklahoma Tax Commission. The Oklahoma Tax Commission (OTC) is the Oklahoma state government agency that collects taxes and enforces the taxation and revenue laws of the state. The Commission is composed of three members appointed by the Governor of Oklahoma with the approval of the Oklahoma Senate.