BAS-106 Reading Guide
How to use this reading guide
This is the concept-review layer for a 100% online course. Read each module before its lesson, complete the retrieval prompts without looking, then use the linked authoritative sources to verify project-specific editions, requirements, and manufacturer procedures.
Online evidence is not OJL: browser simulations, document cases, and isolated remote equipment build reasoning and documentation skill; supervised field performance is recorded separately.
Safety responsibility, authority, stop work and professional conduct
Why it matters: Schedule pressure, seniority, or past practice never overrides a required control or qualification boundary.
Vocabulary and working scope
Employer/owner/GC; supervisor; competent/qualified person; worker; visitor; orientation; policies; JHA/JSA; stop-work; reporting; conduct; impairment; harassment; privacy; accountability.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A lead asks a new installer to continue above a ceiling after discovering unidentified energized conductors.
Calculation: Calculate checklist/authorization coverage, unresolved critical items, communication timing, and readiness; critical gaps are conjunctive holds.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Hazard recognition and hierarchy of controls
Why it matters: PPE is important but usually the last control layer; changed conditions require reassessment.
Vocabulary and working scope
Hazard versus risk; severity/likelihood/exposure; elimination; substitution; engineering; administrative; PPE; residual risk; simultaneous operations; changing conditions; dynamic reassessment.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A planned low-voltage pull now crosses active demolition and overhead work.
Calculation: Use supplied risk matrix, rank controls, calculate residual risk and exposure duration, and identify stop thresholds.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
PPE, clothing, tools and inspection limits
Why it matters: Owning or wearing equipment does not authorize a task; selection, condition, rating, fit, training, and procedure all matter.
Vocabulary and working scope
Eye/head/hearing/hand/foot protection; task-specific PPE; electrical PPE awareness; clothing; hand/power tools; test tools; guards; cords/batteries; calibration/inspection; defective-tool removal; manufacturer use.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
Safety glasses are worn, but a damaged drill and wrong ladder are selected for overhead panel mounting.
Calculation: Calculate inspection coverage, defect rate, due dates, and task-control completeness.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Walking-working surfaces, ladders, lifts and fall hazards
Why it matters: A ladder is not a universal access solution, and ceiling systems/other trades are not work platforms or supports.
Vocabulary and working scope
Housekeeping; slips/trips; openings; stairs; ladder selection/inspection/setup; three points awareness; overreach; lifts/scaffolds awareness; fall protection; dropped objects; exclusion zones; ceiling grid prohibition.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A controller is above a crowded ceiling where the ladder cannot be fully opened and people pass below.
Calculation: Calculate working height/reach from supplied criteria, setup clearance, exclusion area, load, and inspection/readiness coverage.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Electrical, hazardous energy and stored-energy awareness
Why it matters: A BAS stop command, disconnect indication, or zero graphic value is not energy isolation or verification.
Vocabulary and working scope
Electrical shock/arc awareness; energized parts; LOTO; control versus energy isolation; capacitors; pressure; springs/gravity/thermal/rotating; verification; qualified person; boundaries; restart; release.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A fan is off from the BAS, but the VFD, control transformer, rotating assembly, and damper spring remain energy sources.
Calculation: Inventory energy sources, calculate authorization/control coverage, and interpret supplied zero-energy verification records without performing them.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Roofs, mechanical rooms, ceilings and environmental hazards
Why it matters: Mechanical spaces and ceilings contain overlapping hazards that cannot be inferred from low-voltage scope.
Vocabulary and working scope
Weather/heat/cold; roof edges/openings; access; mechanical equipment; noise; hot surfaces; rotating parts; water/steam/refrigerant awareness; asbestos/lead/mold awareness; ceilings; sharp objects; lighting; lone work; confined-space awareness.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A roof sensor task adds wind, heat stress, unprotected edge proximity, and a locked access route.
Calculation: Calculate heat/work-rest or exposure examples from supplied employer criteria, distances, hydration quantities, and risk-control coverage.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Material handling, drilling, penetrations, firestopping and housekeeping
Why it matters: A small cable hole can affect structure, fire/smoke assembly, utilities, infection/dust control, and owner operations.
Vocabulary and working scope
Lift/carry; carts/team lift; sharp edges; drilling/cutting; hidden utilities; dust/silica awareness; rated assemblies; penetration authorization; firestop system/trade; debris; chips; end-of-shift restoration; waste.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
An installer prepares to drill a rated wall using a generic sealant and no scan or approved detail.
Calculation: Calculate load/team handling from supplied limits, material quantities, penetration count, cleanup coverage, and restoration readiness.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Communication, coordination, privacy and secure remote work
Why it matters: A remote session is still jobsite work: approved target/action/time, identity, impact, stop, rollback, and verified closure are required.
Vocabulary and working scope
Pre-task briefing; roles; radios/hand signals; occupant/customer communication; IT/other trades; signage/barricades; photos/data privacy; credentials; Neeve remote session; named user; least privilege; logging; logout.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A trainee receives shared credentials to a live controller while another trade is testing equipment.
Calculation: Calculate communication/owner coverage, session duration, access scope, open-session/credential exposure, and closeout completeness.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Emergency response, incident, near miss and first actions
Why it matters: Protect people and summon the correct response before troubleshooting, cleanup, or blame; do not exceed training.
Vocabulary and working scope
Emergency plan; alarm/evacuation; muster; emergency contacts; first aid/CPR/AED awareness; fire extinguisher awareness; spill/refrigerant/electrical injury boundaries; incident/near miss; scene preservation; reporting; no blame speculation.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A coworker receives a shock and falls from a ladder near energized equipment.
Calculation: Calculate response/reporting timeline from supplied criteria, account for people, and score factual record/control follow-up coverage.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
OJL authorization, restoration and safety defense
Why it matters: A high online score cannot grant field authority; physical competence and site authorization are separately observed and recorded.
Vocabulary and working scope
Competency versus attendance; mentor; task list; direct observation; repeat demonstration; conditions/limits; expired qualification; corrective coaching; as-left area; tools/materials; barriers; equipment state; handoff.
Source-to-result trace
- Locate the controlling requirement and establish authority.
- Identify the physical and digital boundaries.
- Preserve as-found state and timestamps.
- Trace the initiating condition through logic, interfaces, equipment, and process response.
- Compare expected and actual evidence.
- Calculate with units and stated tolerance.
- Record action, result, restoration, uncertainty, and owner.
Worked thinking prompt
A learner passes every quiz but has never demonstrated ladder setup, tool control, or field stop-work behavior.
Calculation: Calculate evidence/observation coverage, recency, critical-gap holds, restoration inventory, and supervisor-signoff completeness.
Retrieval prompts
- What would normal look like in this mode?
- Which two independent observations would strengthen the conclusion?
- What result would disprove the leading hypothesis?
- Which action requires authorization or a qualified person?
- What must be restored and documented?
Required and deeper reading
- OSHA hazardous-energy control route
Federal hazardous-energy requirements and employer-program context; jurisdiction and employer procedures govern. - NFPA 70E electrical safe-work official route
Use the current employer-adopted program and qualified-person rules; awareness training does not confer qualification. - NFPA 70 National Electrical Code official route
Use only the locally adopted edition, amendments, project requirements, listings, and AHJ decisions; course text is not code permission. - ASHRAE Guideline 13-2024
BAS specification, architecture, installation, communications, testing, documentation, cybersecurity, and legacy context.