Depending on the context you are looking for, "147" and "resources" often appear in the following professional and educational areas:

1910.147 - The control of hazardous energy (lockout/tagout). - OSHA

Standard programs at these schools typically last 18–24 months , though some accelerated programs can be completed in as little as 10 months .

The code refers to the OSHA standard for Lockout/Tagout , which regulates the control of hazardous energy.

These "147 Schools" are certificated to train prospective aircraft mechanics for careers in the airline industry.