Trailmarker GZI
Safety and Health Training

Environmental Safety and Health Training


Please contact us if you have any questions or would like additional information
on any of our programs or capabilities.

  • Air Monitoring Instruments

  • Air Purifying Respirators

  • Chemical Protective Clothing

  • Confined Space Entry

  • Decontamination

  • Emergency Planning

  • Hazard Awareness

  • Hazard Recognition

  • Hazmat Response

  • Health and Safety Planning

  • Personal Protective Equipment

  • Right to Know

  • Self-Contained Breathing Apparatus

  • Site Control

  • Specific Chemical Training

  • Spill Control and Response

  • Supervisor Training




Our training is client specific, not generic. Before conducting a training session, our instructors familiarize themselves with the client's operation and training needs. Objectives based on those needs serve as the focus of the training provided.

In addition to covering objectives, the training is designed to be effective. Instructional methods used to assure effective training includes the use of hands-on exercises where appropriate, interactive discussion and problem sessions in addition to lecture presentations geared to the audience. In programs lasting eight hours or more, all of these methods are combined to make sure that attendees understand the skills and concepts required under the training objectives.

The instructional staff is well-qualified to teach the subject matter contained in most OSHA and EPA regulations. Members of the GZI staff are selected as instructors because of outstanding communication skills and knowledge of the subject. The instructors continue to work in the field contrary to most government sponsored programs where instructors teach full time. GZI recognizes the necessity for on-going experience in the field to complement and enhance training quality.

Members of the instructional staff have been key participants in several important training projects which GZI has taken great pride. Two instructors were under contract to present training for the California Department of Health Services , Toxic Substance Control Program. In that capacity, they provided air monitoring instrument training to DOHS/TSCP personnel. Twenty-one courses were presented under this contract. Recently completed, GZI instructors conducted 31 forty hour health and safety training courses for the New Jersey Department of Environmental Protection.

GZI is capable of presenting training courses from one hour long to forty hours or more. GZI has extensive training resources including a video training library and comprehensive instructional materials. GZI owns enough high quality equipment such as air monitoring instruments and respirators for hands-on exercises. We are also equipped with portable video equipment for recording field exercises and simulations.


GZI instructors have trained personnel from the following organizations:

Please contact us if you have any questions or would like additional information
on any of our programs or capabilities.


Ground Zero Instruction (GZI)

Established 1990
Training Division of Trailmarker, Ltd.
Meadville, Pennsylvania



Trailmarker Ltd.

The Safely Working Project

Safety Sidekick Search

GZI - Ground Zero Instruction


Contact Information

P.D. Shafer III

2015 Trailmarker GZI and P.D. Shafer III CET, CHMM, CSHM

GZI is the Training Division of Trailmarker Ltd.  We are dedicated to useful and effective health and safety training.  For 25 years GZI has been presenting quality training for organizations across the country.  Our course list includes confined space entry, respiratory protection, hazard communication, air monitoring instrument use, emergency response, fall protection and other OSHA required training.