Australian RPT Regs for slope guidance (in place for 30+ years):
5.3 Unless otherwise approved in writing by CASA and subject to paragraph 5.4, an operator must not permit turbo-jet aeroplanes to use runways that are not equipped with electronic or visual approach slope guidance.
5.4 Paragraph 5.3 does not apply to runways at nominated alternate aerodromes.
There are dispensations but only for a very limited timeframe, and the captain has to be specifically approved.