For private landlords (anyone who is not a community landlord) the standard contract is the default arrangement, which can be periodic or fixed term.
Ar gyfer landlordiaid preifat (unrhyw un nad yw'n landlord cymunedol) y contract safonol yw'r trefniant diofyn, a all fod yn gontract cyfnodol neu'n gontract cyfnod penodol.