Appendix F: Laser Hazard Warning, Danger and Notice Signs

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Laser hazard signs must be conspicuously posted to warn onlookers of the potential hazard. The appropriate warning or danger sign shall be posted at the entryway(s) and, if deemed necessary by the LSO, should also be posted within the laser-controlled area. Laser hazard warning, danger, or notice signs and labels (except lighted hazards warning signs) are provided by the LSO or are available on the EH&S website.

Warning Class 3B Laser Controlled Area. Laser Radiation. Avoid Direct Eye exposure to beam.

WARNING sign for a Class 3B laser. Complete the blanks on the sign and post as directed by the LSO.

DANGER CLASS 4 LASER CONTROLLED AREA. AVOID DIRECT EYE EXPOSURE TO DIRECT AND SCATTERED RADIATION

DANGER sign for a Class 4 laser. The use of this sign requires LSO authorization. Receive approval and complete the blanks on the sign and post as directed.

DO NOT ENTER. ALIGNMENT IN PROGRESS. AUTHORIZED PERSONNEL ONLY. LASER PROTECTIVE EYEWEAR REQUIRED

NOTICE Alignment in Process laser sign is required when beam alignment is in- process. Complete the blanks on the sign and post as directed.

CLASS 4 LASER CONTROLLED AREA. AVOID DIRECT EYE EXPOSURE TO DIRECT AND SCATTERED RADIATION

WARNING sign for a Class 4 laser. Complete the blanks on the sign and post as directed by the LSO.

NOTICE. UNATTENDED LASER IN OPERATION. AUTHORIZED PERSONNEL ONLY

Notice: Unattended Laser sign is required when lasers are being operated and not attended. Complete the blanks on the sign and post as directed.

This laser is in STORAGE ONLY. You are required to contact the Laser Safety Officer (LSO) at lso@berkeley.edu prior to re-use, relocation, transfer, or disposal of this laser.

Sticker for lasers in STORAGE ONLY status. The LSO shall post lasers in storage only status with this label.