When you have work done on your home, you might not be asked to pay for everything upfront. This doesn't mean that you won't have to pay. Construction companies can file for a contractor's lien on your property if you don't pay for the work that was done.
Construction projects have to meet all applicable laws or they are at risk of being shut down. The so-called bullet train that is set to be built in California has several laws to comply with. One type of law that it has to meet is an environmental law; however, the $64 billion train is at risk of being delayed.