The following information is provided by the U. S. Federal Trade Commission as part of Project Clean. The symbols appearing on garment labels provide care instructions from the manufacturer.

Or just give it to your Mom!
As a minimum, laundering instructions include (in order) four symbols: washing, bleaching, drying, and ironing. Drycleaning instructions include one symbol. Additional symbols or words or both may be used to clarify the instructions. The water temperatures listed below are provided as a guideline. Actual water temperatures obtained in the home depend on washing machine settings (hot, warm, cold), regional supply temperatures, and water heater settings.