SAF Levy was introduced to immigration last year, this is a fund which contributes to the training of Australian Citizens & Permanent Residents whilst hiring foreign employees. This is a required fee to be paid by sponsors only.
494 visa is a new regional visa where you have to be sponsored by employer. 494 visa replaced 187 visa RSMS in November 2019. The 494 visa is a provisional visa which means it does not grant immediate permanent residency. Any 494 visa holders may be eligible to apply for subclass 191 skilled regional permanent residency visa in the future.