FILE PHOTO: Containers are seen at the Yangshan Deep Water Port in Shanghai, China August 6, 2019. REUTERS/Aly Song

WASHINGTON (Reuters) - The 15% duties on Chinese imports taking effect on Sept. 1 will have no grace period for goods in transit, U.S. Customs and Border Protection said in guidance on its website on Friday.

The agency, which collects such duties, said the new tariffs would take effect as planned at 12:01 a.m. EDT Sunday, covering all goods on the list of affected products, including a wide array of consumer electronics, shoes and bed linens.

In the past, the agency has offered a short period during which goods that were already in transit could enter ports without being hit with the additional duties.