The proposal was submitted to the provincial People's Council on June 17 as part of a draft resolution on policies to support public bus services.
Under the proposal, businesses investing in electric and other green-energy buses would receive support covering 100 per cent of loan interest payments from credit institutions for up to seven years.
Eligible loans would be capped at 70 per cent of the approved project investment value.
For buses powered by fossil fuels, the proposed support would cover 70 per cent of loan interest costs for up to five years.
The draft also proposes full interest support for loans financing bus infrastructure projects, including depots and charging stations, for up to five years.
The policy aims to encourage businesses to modernise fleets, expand infrastructure and accelerate the shift to electric and green-energy buses, authorities said.
Tay Ninh currently has 15 bus routes in operation.
Between 2027 and 2030, the province plans to study additional routes connecting key administrative areas while encouraging investment in electric and green-energy vehicles to support sustainable transport development.
According to preliminary estimates, interest subsidies for 40 electric buses could cost around VND 9.9 billion (USD 380,000) annually, while support for three charging stations could require a further VND 1.4 billion per year.
The draft would also maintain operating subsidies for bus services and fare discounts for priority groups, including veterans, older people, students, people with disabilities and young children.