Credit cards issued to MECs can be used both locally and internationally for official government business, Gauteng premier Nomvula Mokonyane said on Tuesday.
"In the course of discharging our responsibilities, we've taken reasonable steps to ensure the prudent use of the corporate credit cards by complying with the prescribed guidelines while being conscious of the fiscal challenges that our province faces," she said.
She said MECs were allocated a monthly limit of between R50,000 and R100,000.
"We have always strived to stay within the prescribed monthly limits."
She said the current guidelines for the use of corporate credit cards were not definitive.
The provincial government was reviewing the guidelines to provide certainty on the interpretation and enforcement of the guidelines.
"We want to reassure the people of Gauteng that we shall continue to do everything in our power to exercise fiscal discipline," she said.
Earlier this month controversial local government and housing MEC Humphrey Mmemezi resigned, after it emerged that he had used the government credit card to make personal purchases.