Promises pledged by parties near the end of the fourth week of the 2021 Tasmanian state election campaign

Here is some of what Labor, the Liberals and the Greens have promised so far.

The state of the Tamar estuary is a feature of each election campaign, be it state or federal.

Labor this week committed $8 million towards improving the health of the waterway - part of which matches the Liberal's $4 million commitment for dredging.

The party has also developed a 10-year strategy for the state's roads network which it says will involve a multi-billion dollar investment and create thousands of jobs.

Labor announced earlier in the week that it would put $31.8 million over six years into a program which would see each primary school-aged student at a public school get a free healthy lunch each day.

Labor also announced a $45.5 million plan to employ an additional 350 teachers over six years to provide one-on-one teaching or teaching in small groups for students who needed extra help with literacy.

The plan will include the recruitment of 20 more speech pathologists in schools.

The party last week promised to put $195.7 million in the budget over six years, above what is already funded, to build 2000 more affordable homes across the state.

It has promised to invest $17.5 million into clearing a large maintenance backlog in the state's social housing properties.

Labor pledged to abolish land tax rates for properties valued at under $100,000 and provide substantial tax cuts for properties worth up to $1 million.

As expected health won the attention of all parties early on in the campaign.

Labor has pledged $197 million to upgrade rural hospitals across the state and for care to be extended at 30 Community Health Centres to 24 hours, seven days a week.

It has promised $137 million to employ 65 more permanent doctors statewide to address the elective surgery and outpatient waiting list.

The party has also promised to recruit 144 more full-time paramedics.

It will invest $40 million to put mental health workers in every public school at a primary and high school level if elected.

Labor has promised to fund free TAFE courses to the tune of $40 million in areas where there were known skills shortages like in construction, hospitality, and the aged care and disability services sector.

It has made a $18.8 million commitment for a system whereby students are provided with a pathway to work and $17.5 million to connect other job seekers to employment through 10 regional job hubs.

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The Liberals on Thursday announced plans for a new bridge to connect the East and West Tamar highways.

It said it would commit $80 million towards the project within 100 days of re-election and make a case to the federal government to fund the remaining $320 million required.

The Liberals this week announced it would invest $14 million to develop a new visitor gateway adjacent to the Freycinet National Park.

It would also invest $6.8 million into the third stage of the Maria Island Re-Discovered project.

It released its long awaited housing policy this week.

Central to this was a $580-million promise to build 3500 social housing homes by 2027.

Changes to TAFE's operations emerged as a likely election issue even before the election was called.

The Liberals have proposed to make the education institution into a government business enterprise and, in the words of Premier Peter Gutwein, have it operate like the businesses it seeks to serve.

The government has promised $98.5 million over four years to employ 100 extra teachers at TAFE and provide increase access to regional students.

In the health portfolio, the Liberals will provide $156.4 million over four years to reduce the elective surgery waiting list.

It will provide 20,000 more dental appointments across the state.

The government has promised a $580 million investment into the Launceston General Hospital redevelopment masterplan and $60 million towards the first stage of a redevelopment of the North West Regional Hospital.

The Liberals have pledged to lift the tax-free threshold for land tax to $50,000 and introduce a foreign investor land tax surcharge of 2 per cent on residential properties.

It will make 7.5 hectares of land in Prospect available for affordable housing developments.

Shortly before the election was called, the government's anti-protest laws failed to get approval in the Legislative Council.

The Liberals have pledged to reintroduce the legislative in the next term of government should it be re-elected.

The Greens have made a commitment to facilitate the provision of 8357 more affordable homes in the state by 2030, including an initial investment into 4000 public housing dwellings.

It has committed to the establishment of a Public Works Department to deliver more public homes.

The Greens want to see changes to tenancy laws, including the introduction of rent control and ruling out evictions of tenants based on lease expiration.

The party has committed to the employment of 50 more full-time-equivalent allied health practitioners around the state to keep people well and out of hospital.

As expected, the party has announcement a substantial number of policies to address climate change.

These include the introduction of a Safe Climate Act with binding emission reduction targets, a grant program to assist farmers to reduce emissions, and a rule for all new car sales in Tasmania after 2030 to be only electric vehicles.

This week the Greens announced it would work to re-establish a state Marine Protected Area strategy and set a target of 10 per cent of Tasmanian waters to become no-take reserves.

They announced a policy to end end native forest logging and post-clearfell burning of native forests on public lands and establish a team within State Growth to transition businesses and workers plantation-grown processing.

The party announced a plan to ban greyhound racing in Tasmania and ban the breeding and sale of dogs for racing purposes.

The Greens have promised to put 224 more paramedics on the road, push for the construction of four new ambulance stations in the state - including one at Legana - and purchase 34 new ambulances.

It wants 730 more nurses and 75 nurse educators to be employed within the health system.