The Australian Helicopter Industry Association (AHIA) has written to Minister Warren Truss asking for CASR Part 61 to be delayed further.
AHIA President Peter Crook sent the letter to head-off the new rules, which are due to be implemented on 1 September.
Part 61 introduced changes to the licencing system, which AHIA believes is flawed.
"As President of the Australian Helicopter Industry Association, I am very concerned with the difficulties our CASR Part 61 Regulatory Review Team, and others, are having with understanding the muted changes to this Regulation," Crook says in the letter.
"The introduction of a completely new licensing system together with new training syllabuses, with no perceived safety benefits, but additional cost, in the current 'Two Tier' format is not understood. Legislation needs to be in the 'Three Tier' format, in plain English and not in the Criminal Code format which is understood by Judges but not Aviators.
"As this third tier has not yet been introduced we, the Australian Helicopter Industry, respectfully request the introduction of CASR Part 61 be further delayed to allow time for Industry to negotiate the proposed changes further with CASA. Why introduce a Regulation which will require concessions to operate until the Regulation is in the proper format, should it not be fixed prior to introduction on 1 September 2014?"
In statement to media AHIA points out that CASR Part 61 flight testing requirements herald a large increase in flight examiners at a time when the industry was already short of qualified testing officers.
"We have been advised that CASA’s intent not to grant its flight operations inspectors flight testing approvals, due to the cost of maintaining an individual’s qualifications, will only exacerbate the problem," the statement says.
"CASA has no implementation plan in this regard and this has the potential to seriously impact the capacity of the industry to function, particularly in the emergency service support, fire and aerial agriculture operations.
"The only solution offered by CASA’s officers is the promise of concessions. But if new legislation needs such concessions upon implementation, it is fundamentally flawed. How can operators manage our risk if we don’t even know what the concessions are? Those concessions should be published well in advance so the industry can scrutinize them."
Part 61 was due to be implemented on 4 December last year, but was delayed until 1 September 2014, with CASA controversially stating that the postponement was due to the industry not being ready.