If a thing is in accord with something else, it is in agreement with it: The contract is in full accord with company policy (it agrees with it). If a thing is in accordance with something else, it obeys or follows it: The contract was drawn up in accordance with your instructions (as you directed).
The blue and white triband is based on the flag of the Central American Federation (CAF), a grouping of African states imposed by the British government in 1953. The stars represent the Federation's five original members. Effective date: 18 January 1949.