Chancellor George Osborne has announced that the UK government is "opening negotiations on the Swansea Bay tidal lagoon."
The Chancellor also said "We are giving more power to Wales. We are working on a Cardiff city deal" - but with no more detail.
Toll rates for the Severn Crossing will be reduced from 2018, George Osborne has announced.
"Severn crossings are a vital link for Wales - we will reduce the toll rates from 2018 and abolish the higher band for small vans and buses."
The Chancellor has gone further to say that Severn Bridges tolls for vans will be cut from £13 to £5.40 to help small traders.
More on the Severn Tolls. According to the Wales Office HGVs and buses will pay £16.30 from 2018, down from current £19.60.
Chancellor George Osborne has announced more funding for air ambulances around the UK during his Budget speech.
He announced support to help charities buy new helicopters including Wales, Essex and Herts, East Anglia and Scotland which will be paid for from LIBOR fines.
Chancellor George Osborne is delivering his sixth annual budget in the House of Commons today.
And with reports suggesting the government has seen a £6 billion windfall, he is expected to announce a number of tax cuts designed to boost the Tories' pre-election campaign.
This broadcast has now finished.
In a statement released ahead of his Budget, Chancellor George Osborne has vowed to deliver a Budget that will help create a "truly national recovery".
Today we set out the next stage in a plan that is working, with a Budget that works for you. We will deliver a truly national recovery
Chancellor George Osborne is set to deliver his sixth, and arguably most important, Budget today.
Welsh Secretary @scrabb2015 looking v pleased coming out of Downing St after cabinet budget briefing. Expecting positive news for Wales?
Our Political Editor Adrian Masters will be in London gathering reaction and summing up the political response following the Budget announcement at 12.30pm.
Among the measures likely to affect Wales directly, the most eye-catching is thought to be an official go-ahead for plans for a tidal lagoon energy project in Swansea Bay. The £1bn development was given a partial thumbs-up in last year's Autumn statement.
Powys County Council will meet again later to decide their budget, after adjourning their decision in February.
It needs to make £20m savings in the next financial year, and £40m by April 2017, which could mean a rise in council tax of up to 4.95% and hundreds of job losses.
The council say strengthened security is in place, following a disruptive incident involving protestors at the last meeting.
Today is the final deadline for a decision to be made, ready to have services in place at the start of the next financial year in April.
As well as increases in council tax, proposals include reducing public services, and cutting the number of staff at the council.
The meeting is due to start at 10.30am.
Councillors in Cardiff faced a noisy demonstration this afternoon as they met to decide on cuts to jobs and services in the city.
The council is facing an unprecedented £50m budget deficit which will mean having to cut some 600 jobs.
Richard Morgan reports.
Angelsey County Council has agreed a council tax rise of 4.5%, after discussions over next year's budget.