These controls are OSHA's preferred method in dealing with laboratory hazards. These controls remove or reduce exposure to a hazard (chemical or physical) by considering the physical space, equipment and materials.
What are Engineering Controls?
These controls involve changes in work procedures to better protect employees. This includes written policies, supervisory activities and training.
What are Administrative Controls?
In cases where engineering controls are not sufficient to provide exposure protection for employees, this must be used.
What are PPEs or Personal Protective Equipment?
This safety duty requires you to notify students of safety practices and procedures where you review and have students sign a safety acknowledgment form stating safety practices.
What is the Duty to Notify of Safety Practices?
This is the duty to make sure engineering controls and PPEs are fully operational and always meets the manufacturers' standards. For example: if the ventilation cap on a chemical splash goggle was removed, take the goggles out of operation.
What is the Duty of Maintenance?
An engineering control that can isolate exhaust and fumes in a specific area.

What is a fume hood?
This might include a binder that records each time a Vendor or Technician has been out to service a machine.
What are equipment maintenance logs?
The type of protection seen here:


What is protective clothing?
This safety duty requires you to always model appropriate safety techniques with students prior to and during having them work with equipment or carry out procedures. This includes work outside of class time (during prep or after school), if a student walks in you are still modeling all safety expectations.
What is the Duty to Model Safety?
For both the Teacher and Administrator, the challenge and responsibility to help make the classroom lab a safer place for students is a:
A. Professional Expectation
B. Legal Expectation
C. Both
What is C?
The action this person is taking:
What is marking safety areas?
When you and your supervisor walk through your space to record lab area set up and safety.
What are Lab Area Audits?
The type of protection seen here:


What is hand protection?
This duty requires you always advise students of dangers relative to safety prior to and during use of potentially hazardous equipment, materials, etc For example: remind students x-acto knives are sharp and can cut skin before use. This includes taking tool or material specific safety quizzes as necessary.
What is the Duty to Warn?
These sheets follow a standardized structure consisting of sixteen sections. These sections are designed to provide quick access to essential information necessary for chemical handlers to ensure safe handling practices and to aid emergency response personnel.
What are Safety Data Sheets (formerly MSDS)?
The action taken by this teacher before beginning the school year:

What is intentional room layout with clear pathways around equipment?
What are general safety lessons and quizzes?
The type of protection seen here:

What is Eye Protection?
This duty requires that before, during and at the close of activities, actively monitor materials & equipment, etc., to help foster a safer working/learning environment. This includes teaching students to identify a tool or material that "doesn't seem right" so it can be removed from use.
What is the duty to Inspect for Safety?
These are reduced when work areas are keep organized, labeled and free of clutter.
What are accidents?
The action you should take here:
vs.

What is selection of a less toxic material?
The samples pictured here that you might see in a classroom:

What are information or warning signs?
The type of protection seen here:

What is Respiratory Protection?
This duty requires you always enforce appropriate safety behavior and have a well-defined progressive disciplinary policy in place that is applied.
What is the Duty to Enforce Safety?
The Administrative Control you put in place every time you leave your room and remember to LOCK YOUR DOOR so no one can enter if you are not there.
What is prohibiting general access?