New legislation arrives on 1 October.
Retailers are reminded to prepare for the single-use plastics ban coming into force on 1 October.
Some businesses are either unaware or not ready for the change to regulations on items such as on plates, bowls, trays and containers which applies in England from next Sunday, says the British Independent Retailers Association (Bira).
The new rules apply to online and over-the-counter sales and supply, and include items from new and existing stock.
All types of single-use plastic, including biodegradable, compostable and recycled, are covered. Equestrian retailers with cafes should be aware that single-use plastic cutlery is on the banned list too.
Breaches can result in fines for business owners, with local authorities carrying out inspections.
"The message is clear, get to know the rules, start planning and tell the customer you have made the changes. It might even be possible to turn this cost into an opportunity," said Andrew Goodacre, CEO of Bira.