Passports are produced in Australia and you should allow up to three weeks to receive your new passport. There is no expedited service available overseas (except in London). If you need to travel within the next three weeks, please advise your interviewing officer when you lodge your application. Please bring evidence of your need to travel (eg. a letter from your employer or your tickets). This evidence should be in hard copy form (i.e. not on your phone).
You may be eligible for an Emergency Passport. Applications for Emergency Passports must be lodged in person. An Emergency Passport is usually issued within two working days. It has four visa pages and the validity will be limited. It does not contain a chip and cannot be used to enter or transit the United States under the Visa Waiver Program (ESTA). If you are travelling to a country that requires a visa, you should check with the embassy of that country whether a visa can be issued in an Emergency Passport and if there is a minimum validity required for the passport.
Please note that not everyone is eligible for an Emergency Passport. You should discuss your eligibility with your interviewer before making any firm travel plans.