The Los Angeles City Department of Public Works, Bureau of Engineering now requires the homeowner to provide a video inspection of the main sewer line when an application for a building permit is requested on any structure built (or land developed) prior to 1965.
When you request your building permit, you may not be advised that a sewerline video inspection will be required before receiving your certificate of occupancy. The City Inspector will review the video inspection to determine the condition of the sewer line and if made of concrete pipe, can require the home or property owner to rehabilitate or replace the sewer line at their expense before finalizing your LADBS permit
In the City of Los Angeles, the homeowner is responsible for the sewer line from the house connection to the public or private sewer connection [and for any easement, such as a sidewalk or street above it] which may result in additional expense.
However, on the bright side, there is probably no repair more important on any property than a safely functioning sewerline.