Tonga's government is working on a new national engergy bill after signing a deal with the European Union yesterday.
A lawyer working on the reform says laws governing petroleum, electricity and renewable energy, will be integrated into one bill.
Sela Bloomfield from Solutions Consulting House said new provisions regulating gas will also be included.
Tonga has an Energy Road Map aimed at lowering the Kingdom's dependence on imported fuel.
Ms Bloomfield said yesterday's signing was a real milestone for Tonga.
"The EU in the representative statement yesterday emphasised the recognition that a strong legal framework was just as important as the technical assistance on the ground. So, this is recognition of years of work of different parties, but also Tonga's strong commitment towards achieving its energy sector goals," said Sela Bloomfield.
A government spokesperson said the contract is for around $US130,000 and a draft of the Energy Bill is expected to be before Cabinet in June next year.