The new temporary activity visa framework will replace seven visa subclasses with four new subclasses.
The new visas cover short-term specialist temporary work, temporary activity, training and international relations.
The Departments Assistant Minister Alex Hawke says the reform reduces red tape and administrative burden.
Paper applications have been scrapped - all visa applications now need to be made through ImmiAccount online.
The new subclass 400 visa category targets short-term workers undertaking highly specialised work on a non-ongoing basis or participate in an activity or work relating to Australias interests.
The subclass 408 visa category covers temporary activities such as exchange, sport, religious work and domestic work for executives.
Entertainers, super yacht crews and researchers are now also part of this category.
Bulk discounts and not for profit concession will no longer be available for entertainers.
Instead, there will be a more targeted fee concession for charitable organisations and government-funded events.
The subclass 407 training visa category will replace the current training and research subclass 402 visa.
It is aimed at those coming to Australia for temporary occupational training or classroom based professional development activities.
Subclass 407 visa applicants will still need a nomination and a sponsor regardless of how long they intend to stay in the country unless being sponsored by a commonwealth agency.
The subclass 403 temporary work visa is catered for people working under a bilateral agreement, teach a foreign language, undertake domestic work for a diplomat or participate in the Seasonal Worker Programme.
Assistant Immigration Minister Alex Hawke says applications lodged before 19 November would be processed based on legislation before the changeover date.
