BEIJING -- China's food and drug watchdog on Wednesday unveiled a revised regulation which will significantly increase standards for domestic infant-formula producers.

The regulation, called Detailed Rules on Examination of Production License for Infant-formula Milk Powder Producers (Version 2013), was drafted with participation of 30 experts and food and drug supervisors from 20 government departments and organizations, said the State Food and Drug Administration.

The revised regulation set new rules and raise requirements for infant-formula producers in nine aspects, including purchase of raw materials, formula product inspection, manufacturing process and production skills.