A new economic partnership agreement between Japan and the United Kingdom came into effect on Friday.
The two nations signed the accord last October following Britain's departure from the European Union.
The new agreement is based on the existing economic partnership agreement between Japan and the EU.
It calls for abolishing tariffs in 2026 on Japan's automobile exports, and for no new tariffs on Japan's farm product imports.
The agreement sets tighter rules than existing ones in the field of e-commerce. They include restricting government intervention in data exchanges for business purposes.
The UK and the EU agreed their post-Brexit trade deal in late December.
The deal avoids tariffs that would have been imposed on products of Japanese businesses in Britain to be exported to the EU, when the transition period expires.