If you are traveling to Macau, you only need to go to the local customs to apply for a Hong Kong and Macau pass. It costs 120 yuan and can be used for 10 years. You can stay in Macau for 7 days with this pass. If you go to Macau to work, it is a labor export and requires a guarantee. I am in Zhuhai. My friend is going to work as a hotel room attendant at the Sands Casino in Macau and needs a Zhuhai household registration guarantee. And paid a security deposit.