Australian aviation officials have lifted a six-week ban on the Australian subsidiary of Singapore-based Tiger Airways.

The director of the nation's Civil Aviation Safety Authority said Wednesday that Tiger Airways can resume domestic flights “at a date and time of their choosing.” The action comes after the airline agreed to new safety measures.

The ban was imposed in early July after two Tiger Airways jetliners violated minimum altitude requirements during final approaches to Australian airports.

The changes ordered by CASA involve pilot training and proficiency, fatigue management and the updating of reference materials. They also require the airline to improve its safety management systems and maintenance oversight.