The campaign involves asking shoppers to avoid using the bags on the 15th of each month. Several department stores and convenience store chains have joined hands in providing consumers with incentives to avoid taking plastic shopping bags.
It is likely take some time for the campaign to significantly affect plastic bag use because so many small items are still packaged that way. And, as our readers have pointed out, many people re-use their plastics bags for a wide variety of purposes.
Shoppers who say "no" to taking plastic bags at 15 supermarket chains and convenience stores will receive rewards.
Regular shoppers with membership cards at some supermarkets, including those operated by Central Group and The Mall Group, will receive extra reward points if they bring their own shopping bags.
Mr Sermyos revealed that on Aug 15 alone, 1.8 million fewer plastic bags were used by shoppers.
The department and its allied business operators were considering expanding the campaign to also cover the 30th of every month, he said.
The campaign aims to reduce plastic bag waste by 10% in the scheme's first three months and start a trend of shopping with tote bags. Mr Sermyos said waste management has been put on the national agenda.
The Natural Resources and Environment Ministry said plastic and styrofoam waste creates 2.7 million tonnes of rubbish a year.