The Central Environmental Authority (CEA) has urged the public to avoid using plastic and polythene materials for Vesak decorations and ‘Dansal’ activities, warning that several commonly used items are prohibited under environmental regulations.

Issuing a special notice ahead of the Vesak season, the CEA said the move is aimed at protecting the environment and public health.

A number of single-use plastic items, including drinking straws, cups, plates and cutlery, are banned under existing gazette regulations. The use of polystyrene food containers, polythene lunch sheets, plastic garlands and decorative materials made from polyethylene or polypropylene has also been prohibited.

The authority warned that the sale, display and use of such materials during religious and cultural events could result in legal action under gazette notifications issued in 2017 and 2023.

Improper disposal of plastic and polythene waste could pollute waterways and pose a threat to wildlife, the CEA said, while the burning of such materials releases harmful gases into the environment.

CEA Chairman Professor Thilak Hewawasam said Vesak should be celebrated in a way that does not harm the environment. As Buddhists commemorating the birth, enlightenment and passing away of the Buddha, there is a responsibility to act with care towards nature and all living beings, he said.

The authority encouraged the public to use environmentally friendly alternatives and ensure proper disposal of non-biodegradable waste during the festive period. The warning comes during the state-organised Vesak festival running May 27 to June 2, and as Parliament prepares to take up the Environment Bill load-based fines framework advanced by the Central Environmental Authority’s parent ministry.