Post offices in Riverside and San Bernardino counties will be closed Monday in observance of New Year’s Day.

Only Priority Mail Express will be delivered on the actual holidays as well as the observed holidays. All post offices will be open and regular mail delivery will resume Tuesday.

Additional postal service holiday information can be found at usps.com/holidaynews.

The postal service receives no tax dollars for operating expenses and relies on the sale of postage, products and services to fund its operations.