Armando Grecu, 26, from Ilford, and Valerica Cismaru, 52, from Erith, were caught transporting scrap metal without the proper waste carrier licences during separate incidents earlier this year.
Grecu was stopped by officers on May 14 during an Op Assist deployment on Mead Road in Dartford.
He was convicted on November 21 of operating without a waste carrier licence and ordered to pay a total of £1,121, including a £300 fine, a £120 victim surcharge, and £701 in costs.
Cismaru was stopped on February 12 in Barfield, Sutton at Hone, during a previous Op Assist operation.
He was also convicted on November 21 at Sevenoaks Magistrates Court and fined £420 for failing to have a waste carriers licence.
Jeremy Kite, leader of Dartford Borough Council, said: “If someone takes your scrap for disposal, it’s vital that you check for a waste carriers licence, so that you know it will be disposed of properly.
“A simple check can protect the environment and support legitimate, fully licensed local businesses.
“Op Assist continues to be a successful partnership between Dartford Borough Council and Kent Police and I look forward to seeing more results like this in the future.”
Sergeant Molly Irwin of Kent Police said: “Targeting illegal waste carriers is essential to preventing fly-tipping and safeguarding our environment.
“These activities not only damage our countryside but also undermine legitimate businesses and harm local communities.
“By taking action against offenders, we are reinforcing the message that environmental crime will not be tolerated.”
