General Dynamics NASSCO, a major ship design, construction and repair company, mailed warn letters to about 1, 040 employees in San Diego, Norfolk and Mayport, informing them that they could be indefinitely laid off in April -- at the end of April through the summer, due to the possible cancellation or delay of maintenance and repair work and uncertainty created by sequestration.

WHITEHOUSE: Press Briefing

Safety considerations will be taken care of by having chains of approved dealers who meet manufacturers' technical standards for repair and maintenance work.

ECONOMIST: Car industry

Growth in private housing and infrastructure accounted for much of the rise, the ONS said, but this was partially offset by decreases in new public non-housing work and private housing repair and maintenance.

BBC: Cranes in London

The estimated volume of all new work grew by 1.6%, while repair and maintenance fell by 0.3% compared with the previous quarter.

BBC: Cranes in London

Therefore, full safe clearance is never done during the day (except in emergency repair situations), and nighttime is the only time all the major maintenance work can be completed.

FORBES: Why Does BART Need To Do Nightly Maintenance?