The teachers will wage war against the Liberals and Nationals who they say have cut funding to the vocational education organisation.

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The NSW Teachers Federation will actively campaign in the lead-up to May 18 for extra funding of apprentices.

The Stop TAFE Cuts! Campaign urges a vote for Labor, Greens or independent candidates who support a guaranteed minimum of two-thirds of the public vocational education and training budget for the TAFE system.

The Federation's Mercurius Goldstein said there are 140,000 fewer apprenticeships Nationally than when the Coalition took office.

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"It is essential that voters support parties and candidates who guarantee at least two-thirds of public funding to TAFE if we are to maintain viable skills through TAFE-based apprenticeships and traineeships in the Dubbo region," he said.

"Labor and the Greens are the only parties in this election that have guaranteed at least two-thirds or more of public funding for TAFE.

"Thousands of rural students depend on TAFE for skills, employment and life-long education opportunities. Thousands more families rely on TAFE teaching for their livelihood, which is vital in rural towns and cities like Dubbo."

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Member for Parkes Mark Coulton said the Coalition Government had made significant announcements regarding apprenticeship assistance, particularly in rural areas.

"The Liberal and Nationals Government will build on our existing support by implementing a $585 million package which includes Skill Shortage Payments of $4,000 for eligible employers and $2,000 for apprentices," he said.

"The Federal Government does not directly fund TAFE. That is a responsibility of State and Territory Governments.

"Labor's track record shows they cannot be trusted, their failed VET FEE-HELP policy was a lightning rod for dodgy providers who ripped off young Australian students, loading them up with debt and no qualification to show for it."

Mr Coulton says while Bill Shorten was Employment Minister, the number of apprentices and trainees in training collapsed by 22 per cent or 110,00 - "the biggest annual decline ever," he said.

But NSW Teachers Federation President Maurie Mulheron said future training and education opportunities had been compromised by a sustained assault on the TAFE system from the Coalition government.

"Funding to vocational education and training (VET) has been cut by $3 billion since they took office," he said.

"Scott Morrison, as Treasurer in 2018, cut apprenticeships by $270 million. The most recent federal Budget failed to even mention TAFE, and despite VET FEE-HELP costing the Australian community more than $5 billion, much of which was handed to dodgy for-profit providers, the Morrison Government continues with an agenda to privatise the VET sector."