OBS_VALUE: As of March 2018, subclass 457 visa are replaced by the Temporary Skill Shortage visa (subclass 482).In the past, businesses when applying to become sponsors had to indicate how many foreigners with 457 visas they wanted to hire during the period of the validity of their sponsorship status. This might have had an impact on the number of foreign services providers that can be sponsored by a business, if in case of need, the business had not been not in a position to hire additional foreign professionals.