Jenkins Academy of Applied Technology

BEX-001 — Learner reference

Blasting and Explosives · v1.0.0 · October 22, 2026

Course developed by Todd Jerome Jenkins, MS, CSP.

Recognize blasting hazards, follow warning signals and restricted-area controls, and report emergencies. Covers OSHA awareness and separate ATF and transportation responsibilities. Fourteen audible lessons; allow about 35–50 minutes.

Online awareness only. Site-specific instruction, blaster competence, legal eligibility and permits, and hazmat transport training remain separate. This course does not authorize explosives handling, blast design, firing, misfire recovery or disposal.

1. Identify the rules and the limits of this course

By the end: Identify the activity, jurisdiction and your assigned role before work.

Blasting work can expose nearby workers as well as the blasting crew. This course teaches workers and supervisors to recognize restrictions, follow site instructions and report unsafe conditions. It does not teach how to prepare, load, connect, fire, recover or dispose of explosives.

Construction blasting is covered by OSHA 1926 Subpart U. General-industry explosives and blasting-agent requirements are addressed in 1910.109. The employer must determine which rules apply to the actual activity. A construction project and an explosives manufacturing operation do not have identical requirements.

Federal explosives licensing and possession requirements are administered separately by ATF. Transportation can bring separate Department of Transportation duties. State and local requirements may also apply. A federal explosives license or permit does not override state or local law.

Online completion is a record of this knowledge component. It is not blaster qualification, an ATF license or permit, hazmat transportation qualification or approval of a blast plan. Specialized underground, underwater, manufacturing and other operations require additional technical review and instruction.

Basis: 29 CFR 1926 Subpart U; 1910.109; ATF 27 CFR Part 555

2. Separate awareness from blaster competence

By the end: Confirm the responsible blaster and remain within your verified assignment.

Only authorized and qualified people may handle or use explosives in covered construction. Competent, thoroughly experienced personnel must direct and supervise loading and firing. A nearby worker should know who is in charge and how to contact that person safely.

Blaster qualifications include understanding written and oral orders, appropriate physical condition, and the training, knowledge or experience needed for the work. The standard also addresses intoxicants and similar drugs. Report a fitness concern through the employer’s process; do not diagnose a coworker.

The blaster needs working knowledge of applicable state and local law and satisfactory evidence of safe competence for the type of blasting required. Competence must cover each method used. Years on a crew or a job title alone do not demonstrate all these elements.

Supervisors should verify the actual evidence before assignment. Keep legal eligibility, employer authorization and technical competence distinct. Workers must decline duties beyond their verified role and request qualified help. Schedule pressure does not expand anyone’s qualifications.

Basis: 29 CFR 1926.900(a), (q); 1926.901

3. Learn the site instructions before exposure

By the end: Explain the local warnings, route and reporting process in your own words.

Employers must instruct employees to recognize and avoid unsafe conditions and understand the rules applicable to their work. Near blasting, the site briefing needs to make each person’s safe actions clear. Reading a generic course does not identify today’s work boundary or reporting contact.

Before entering the work area, learn the posted signal code, evacuation route, designated safe place, access controls and all-clear process. Confirm how instructions reach subcontractors, delivery drivers and people arriving partway through a shift. Ask for an explanation when a signal or route is unclear.

Use teach-back: explain where you go, what you do when warned and who may authorize return. Provide language and accessibility support appropriate to the workforce. A signature on an attendance sheet does not show that an employee can recognize the warning or find the safe place.

Rebrief when conditions, routes, assignments or instructions change. Correct gaps before exposure. This course does not invent a universal annual blasting-awareness interval or a required number of online hours. The employer must meet the actual training and licensing rules that apply.

Basis: 29 CFR 1926.21(b)(2); 1926.909(a)

4. Recognize hazards beyond the blast itself

By the end: Use the designated protection and report changes from a safe place.

Explosives work can create flying fragments, pressure effects, noise, airborne contaminants and unstable ground. Nearby structures, utilities and traffic may also be affected. The employer and qualified blasting personnel must assess the actual site; this course supplies no universal safe distance.

Do not assume a vehicle cab, wall or ordinary shelter is approved protection. Use only the safe location or cover designated through the site’s qualified planning process. Personal protective equipment is not a substitute for keeping people out of the danger area.

After an event, a quiet area can still contain fumes, unstable material or unexploded explosives. Ordinary appearance is not proof of safety. Report damaged barriers, unexpected debris or a changed work condition without entering the affected area to investigate.

For example, a delivery arrives while access is restricted. The driver’s short stop does not make entry acceptable. Use the established traffic and contact process. The same principle applies to a worker who left a tool inside: property retrieval waits for authorized access.

Basis: 29 CFR 1926.900(h); 1926.910; employer hazard assessment

5. Coordinate contractors, utilities and public access

By the end: Resolve conflicting instructions and report unaddressed utilities or access routes.

Blasting near utilities and other services requires notification of the affected owners or operators and safe-control measures before the work. Supervisors must route new information to the responsible planning team. A worker who notices an unmarked service should report it and avoid the affected activity.

Coordination also includes contractors, delivery services and traffic. Roads through a danger zone need safely stationed flagmen to stop traffic during blasting. Underground access points require particular protection. People outside the immediate crew must receive the instructions relevant to their exposure.

A practical pre-work discussion identifies who controls access, who accounts for each crew and who communicates changes. Use the employer’s approved channels. A contractor’s independent schedule cannot overrule the site’s restriction or all-clear process.

If two supervisors give conflicting instructions, remain in a safe place and obtain clarification through the designated authority. Do not choose the instruction that allows the quickest restart. Record and correct communication problems so they do not recur on the next shift.

Basis: 29 CFR 1926.900(o); 1926.909(c), (e)

6. Follow posted signals and controlled access

By the end: Know the posted code, take protective action and wait for authorized clearance.

The construction rule requires a conspicuously posted blasting signal code equivalent to Table U-1. Employees must know and follow it. Danger signs must be suitably placed. Learn the actual posted code before work; do not infer the meaning of a sound from another project.

The code distinguishes warning, blast and all-clear signals. A warning directs protective action; it is not permission to finish a last task. The all-clear follows inspection. Silence or the sound of a blast is not an all-clear signal.

The blaster in charge must ensure personnel and equipment are safely located before the blast. Workers support this process by following the agreed route, checking in where required and remaining in the designated safe place. Do not return to collect someone or investigate a missing person yourself.

If you cannot hear or recognize signals in your work setting, report that before work proceeds. The employer must provide an effective arrangement for affected people. Headphones, noisy machinery, language barriers or distance must not leave someone dependent on guessing.

Basis: 29 CFR 1926.909(a)–(e), Table U-1

7. Respect ignition and weather restrictions

By the end: Follow ignition, weather and communication restrictions without improvising exceptions.

Smoking, flames, sparks and other prohibited ignition sources must be kept out of the controlled explosives environment. Follow the site’s posted restrictions and instructions. Do not bring a tool or device into a restricted area merely because it is normally used elsewhere on the project.

Electrical storms and extraneous electrical energy can create serious hazards. Covered construction blasting operations must be suspended and people removed during the approach and progress of an electrical storm. Do not wait for rain at your exact location before following an evacuation instruction.

Radio and transmitter restrictions require qualified, site-specific application of the standard. Follow posted directions and the approved communication plan. This course does not specify a blanket distance or grant permission to use a phone or radio near explosives.

Before work, know how to contact help without violating communication restrictions. If instructions are missing or conflicting, stop and obtain clarification from a safe location. A personal judgement that a device is low powered is not an authorization.

Basis: 29 CFR 1926.900(b), (k); employer site instructions

8. Protect access and report missing materials

By the end: Report security concerns immediately and leave accountability investigation to authorized personnel.

Explosives accountability and authorized access are employer responsibilities. Workers should know how to report an open restricted area, suspected tampering or an unauthorized person. Do not enter a storage area to perform an informal check or accept explosives outside your authorized role.

Storage and inventory arrangements require the applicable OSHA and ATF review. This lesson is not a magazine design, inspection or inventory procedure. Keep sensitive security records in the employer’s controlled system, rather than a public course discussion or generic worksheet.

ATF requires a person who knows of theft or loss from their stock to report it to ATF and appropriate local authorities within 24 hours of discovery. The ATF reporting process includes telephone and written reporting. Responsible personnel must use the current official instructions promptly.

Employees should report concerns immediately through the site route so the responsible people can act. Do not delay while trying to prove theft or resolve an inventory discrepancy yourself. Protect yourself and others; do not confront a suspected intruder.

Basis: 29 CFR 1926.900(d), (n); ATF 27 CFR 555.30

9. Keep legal eligibility separate from training

By the end: Verify legal authorization and technical competence as separate requirements.

ATF explosives licenses and permits serve different purposes and have conditions. The organization must determine the authorization required for its activities. A permit does not authorize the business of manufacturing, importing or distributing explosives simply because it permits some acquisition or use.

Employee-possessor eligibility is also distinct from training. ATF uses an employee possessor questionnaire to determine eligibility where required. Completion of this course does not complete that process or override a legal prohibition on possession.

The employer must also address applicable state and local licenses or permits. Do not assume that a federal document makes every local operation lawful. Likewise, legal eligibility does not establish that a person has the technical competence for the assigned blasting method.

Use a role review that separately records the required legal checks, qualifications and employer assignment. Keep personal eligibility information private. A worker needs clear confirmation of their authorized tasks, not access to coworkers’ confidential background information.

Basis: ATF 27 CFR Part 555; 27 CFR 555.62; OSHA 1926.901

10. Recognize separate transportation training duties

By the end: Confirm transport-role training and authorization before accepting a shipping or driving duty.

A person whose work affects hazardous-materials transportation safety may have hazmat employee training duties. These duties can apply beyond drivers. The employer must evaluate the actual function; an explosives-awareness certificate does not qualify someone to prepare a shipment or transport it.

Required training includes general awareness, function-specific training, safety and security awareness, with in-depth security and driver training where applicable. The employer must train, test, certify and retain the required records. Recurrent training is required at least every three years.

For a new or changed function, the limited initial-training provision permits work only under direct supervision of a properly trained, knowledgeable employee, with training completed within 90 days. It is not a general unsupervised grace period. This course does not supply the missing function-specific instruction.

Underground construction transport has additional requirements, including weekly truck electrical-system checks and a retained latest certification record identifying the truck, date and inspector. Assigned personnel need the full procedure. Nearby workers must obey conveyance restrictions and must not treat an explosives movement as ordinary passenger transport.

Basis: 49 CFR 172 Subpart H; PHMSA training guidance; 29 CFR 1926.903

11. Wait for inspection and authorized reentry

By the end: Wait for the required inspection and explicit clearance rather than judging by time or appearance.

After blasting, the required inspection must be performed by the blaster before employees return to the operation. Workers must remain outside the restricted area until the proper clearance. The course does not authorize a learner to make that inspection.

The rule requires enough time for smoke and fumes to leave and sets a minimum of 15 minutes in tunnels. That minimum is not an automatic all-clear. The required inspection and tunnel conditions still apply; a longer restriction may be necessary.

Neither smell nor visibility proves that air is safe. Use the employer’s applicable atmospheric evaluation and ventilation arrangements. Report dizziness, irritation or other concerns from a safe location and seek the designated medical response. Do not send an untrained coworker into a potentially hazardous atmosphere.

Return only to the work area actually released. An all-clear for one location does not necessarily release another controlled area or authorize a different task. If conditions change after return, stop affected work and report the new hazard.

Basis: 29 CFR 1926.910; 1926.909 Table U-1

12. Recognize suspected misfires and stay clear

By the end: Stop, keep clear and notify; leave misfire assessment and recovery to authorized specialists.

A suspected misfire or unexploded material must be treated as an unresolved explosives hazard. Stop affected work, keep clear and notify the blaster through the safe reporting route. Do not touch, move, test or investigate the material.

The blaster must provide safeguards that exclude employees from the danger zone. Only the necessary personnel may remain for work needed to remove the hazard. Ordinary production must not continue around an unresolved misfire.

Drilling, digging and picking must not proceed until the standard’s clearance conditions are satisfied. A coworker’s belief that the material is harmless is not authorization. This awareness course gives no waiting-time shortcut or recovery procedure.

If suspicious material appears during later excavation, the same boundary applies: stop, withdraw and report without disturbing it. Give the location from your safe observation and follow instructions. Do not return to take a closer photograph or collect a sample.

Basis: 29 CFR 1926.911; employer emergency instructions

13. Evacuate and report emergencies safely

By the end: Evacuate, report and remain clear; do not fight a fire threatening explosives.

When fire is in imminent danger of contacting explosives, the construction rule prohibits fighting that fire. Employees must be removed to a safe area and intruders kept out. A portable extinguisher does not make an employee qualified to intervene in that situation.

Use the site emergency plan and call the designated emergency service from a safe location using permitted communications. Tell responders that explosives may be involved and provide the known location and safe access information. Do not approach to obtain additional details.

Account for people at the designated safe place. Report anyone missing and their last known location to the responsible responders. Do not make an unauthorized rescue entry. Emergency access and technical response must be controlled by qualified personnel.

Keep clear until the authorized response team permits return. Record observations afterward through the employer’s incident process, without speculating about causes. Course support and routine online feedback are not emergency reporting channels.

Basis: 29 CFR 1926.900(f); employer emergency plan

14. Verify workplace readiness and retain evidence

By the end: Record actual understanding, close gaps and keep role-specific qualifications separate.

Before assignment, verify what the worker can explain and do safely within their role. Use a briefing and teach-back in a safe setting: identify the warning, route, safe place, reporting contact and rule for return. Do not use live explosives handling as an awareness-course demonstration.

Record the actual date, instructor, worker, topics and observed understanding. Record gaps, corrective instruction and task restrictions. These fields are a practical employer tool, not a claim that one universal OSHA form applies to every blasting role.

Keep the awareness record separate from blaster competence, ATF eligibility and permits, transport training, inspection records and the site’s technical documents. Required retention periods differ. The responsible organization must maintain each record under its applicable rule and protect confidential information.

A passing online score does not resolve a missing site instruction or a failed teach-back. Provide the needed instruction and verify understanding before relying on readiness. Review again when work or conditions change. Employees should know they can raise a concern without guessing or stepping outside their role.

Basis: 29 CFR 1926.21(b)(2); 1926.901; employer verification practice

Sources

Federal OSHA sources reviewed October 22, 2026. Confirm the actual work, jurisdiction and applicable additional requirements. Agency guidance supports planning; it is distinguished from mandatory standard text.