21 credential programs ladder toward this occupation. Median wage on completion: $40,760 · projected growth +4.2%. See full occupation profile →
Certification
AHAM/NARDA Refrigerant Recovery Certification
Professional Service Association
$60 cost
Explain ozone depletion and its environmental and health impacts in the context of refrigerant useExplain climate change and global warming as they relate to refrigerant emissionsIdentify refrigerant types, numbering systems, classifications, and oils used with refrigerantsApply CFC regulations including the Montreal Protocol, Clean Air Act, and EPA requirements in refrigerant serviceApply technician certification requirements and proper disposal procedures for appliances containing refrigerantsApply refrigerant handling and safety practices including use of safety data sheets, cylinder safety, and spill response
Certification
Asphalt Shingle Systems Installer
National Roofing Contractors Association
Apply general workplace safety policies including OSHA regulations, hazard identification, and corrective action procedures on asphalt shingle roofing job sitesUse, inspect, and maintain fall protection systems, PPE, ladders, and tools in accordance with manufacturer and employer requirementsHandle, lift, and move materials, tools, and equipment safely to prevent injury to self and othersApply basic roofing terminology, calculations, and measurements to follow project specifications and instructions accuratelyDemonstrate professional work practices including communication, collaboration, accountability, and commitment to continuous learning on roofing job sitesIdentify and select asphalt shingle system materials, underlayments, and accessories based on project specifications and manufacturer instructions
Certification
Clay and Concrete Tile Systems Installer
National Roofing Contractors Association
Apply general workplace safety policies including OSHA regulations, hazard identification, and corrective action procedures on clay and concrete tile roofing job sitesUse, inspect, and maintain fall protection systems, PPE, ladders, and tools in accordance with manufacturer and employer requirements for clay and concrete tile installationsHandle, lift, and move materials, tools, and equipment safely to prevent injury to self and others on clay and concrete tile roofing job sitesApply basic roofing terminology, calculations, and measurements to follow project specifications and instructions accuratelyDemonstrate professional work practices including communication, collaboration, accountability, and commitment to continuous learning on roofing job sitesIdentify and select clay and concrete tile system materials, underlayments, and accessories based on project specifications and manufacturer instructions
Certificate
Concrete Finisher
National Center for Construction Education and Research (NCCER)
Apply safety requirements for concrete construction and finishing operationsIdentify properties of concrete including mix design characteristics and behavior to support finishing workSelect and use tools and equipment for concrete placement and finishingPrepare the site and subbase for concrete placementPlace and finish concrete including screeding floating and troweling operationsCure and protect concrete after placement to achieve required strength and surface quality
Certificate
Drywall Mechanic
National Center for Construction Education and Research (NCCER)
Apply basic safety practices to protect workers during drywall and interior construction operationsApply construction math skills to support measurements layout and material calculationsSelect and use power tools for drywall and interior construction applicationsIdentify and apply construction materials and methods relevant to interior and exterior finishing workApply thermal and moisture protection materials and systems during constructionInstall drywall including layout cutting fastening and assembly to framing systems
Certification
Exterior Flatwork Finisher
National Ready Mixed Concrete Association
Knowledge of Concrete Requirements for Exterior FlatworkPlace and Finish Concrete Per Standard ProceduresKnowledge of Joint Types and Applications in Concrete FlatworkCure Concrete Per Standard ProceduresIdentify Types and Causes of Concrete Surface Problems
Certificate
HVAC Technician
National Center for Construction Education and Research (NCCER)
Apply basic safety practices to protect workers during HVAC installation and service operationsApply basic rigging techniques to safely move and position HVAC equipment and componentsApply trade mathematics to support HVAC calculations and measurementsPerform soldering and brazing to join refrigerant and piping system componentsInstall and work with ferrous metal piping for HVAC applicationsApply principles of cooling systems to support installation service and troubleshooting
Certificate
Heavy Equipment Operator- Forklift
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic forklift operational techniques including machine controls startup shutdown and travelExecute forklift operations including lifting transporting and placing materials
Certificate
Heavy Equipment Operator- Loader
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic loader operational techniques including machine controls startup shutdown and travelEstablish and maintain grades and perform site work using the loaderIdentify soil types and apply earthmoving principles to support loader operationsPerform excavation math calculations to support site grading and volume estimationExecute loader operations including loading stockpiling and material handling
Certificate
Heavy Equipment Operator- Motor Grader
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic motor grader operational techniques including machine controls startup shutdown and travelEstablish and maintain grades and perform site work using the motor graderIdentify soil types and apply earthmoving principles to support grading operationsPerform excavation math calculations to support site grading and volume estimationExecute motor grader operations including grading spreading and finishing material
Certificate
Heavy Equipment Operator- Off-Road Dump Truck
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic off-road dump truck operational techniques including machine controls startup shutdown and travelEstablish and maintain grades and perform site work using the off-road dump truckIdentify soil types and apply earthmoving principles to support hauling operationsPerform excavation math calculations to support site grading and volume estimationExecute off-road dump truck operations including loading hauling and dumping material
Certificate
Heavy Equipment Operator- Scraper
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic scraper operational techniques including machine controls startup shutdown and travelEstablish and maintain grades and perform site work using the scraperIdentify soil types and apply earthmoving principles to support scraper operationsPerform excavation math calculations to support site grading and volume estimationExecute scraper operations including cutting loading hauling and spreading material
Certificate
Heavy Equipment Operator- Skid Steer
National Center for Construction Education and Research (NCCER)
Apply heavy equipment safety practices to protect the operator and others on the worksitePerform basic skid steer operational techniques including machine controls startup shutdown and travelEstablish and maintain grades using the skid steerPerform excavation math calculations to support site operations and volume estimationExecute skid steer operations including loading digging grading and material handling
Course
Manufactured Home Installer Helper
ACCS Innovation Center
AL
Adhere to local codes and regulations related to manufactured home installation.Apply safety measures including the use of barriers, signage, and proper tool storage.Assess foundation material compatibility for proper installation requirements.Attach anchor straps accurately for secure home stabilization.Communicate with homeowners or dealers about site preparation and installation needs.Conduct a final walkaround inspection to verify compliance with installation requirements.
Certification
PV Installation Professional (PVIP)
North American Board of Certified Energy Practitioners
Review customer expectations and project criteria including codes, utility requirements, and construction plan specifications for PV system designAssess project sites by evaluating array locations, roof surfaces, structural loads, shading, azimuth, and point of interconnectionConfigure mechanical designs including racking systems, mounting hardware, flashing, foundation principles, and module tilt and orientationConfigure electrical designs including inverter selection, string sizing, DC and AC circuit calculations, overcurrent protection, and energy storage systemsConfigure system monitoring, control, and communications designs including data platforms, automated shutdown, and communication methodsPrepare project documentation and secure permits including plan sets, electrical diagrams, labeling requirements, and AHJ approvals
Certification
PV Installer Specialist (PVIS)
North American Board of Certified Energy Practitioners
Develop and implement site-specific safety plans in compliance with OSHA and NFPA 70E requirementsInstall raceways, electrical equipment, and DC and AC PV system conductors per NEC requirements and approved plan setsInstall grounding and bonding systems and complete utility interconnection points per NFPA 70 and AHJ requirementsInstall system monitoring, control, and communication hardware including field verification of cable identification and equipment configurationInstall battery equipment including proper labeling, enclosure, ventilation, and conductor installation per applicable codes and safety standardsInstall ground-mounted structures and building-mounted racking systems including foundations, attachments, waterproofing, and array layout
Certification
PV System Inspector (PVSI)
North American Board of Certified Energy Practitioners
Verify system labeling for AC/DC disconnects, raceways, inverters, and rapid shutdown systems in compliance with NEC and AHJ requirementsInspect installed electrical components to confirm they match approved plans, are properly listed, and meet applicable codes and working clearance requirementsInspect conductors and raceways to verify ampacity, voltage rating, conductor type, conduit fill, and suitability for environmental conditionsAssess conductor terminations for size, material compatibility, secure connections, and voltage and current ratingsVerify grounding system integrity including equipment grounding conductors, grounding electrodes, and ground fault detection per applicable codesInspect the PV system utility grid interconnection point to verify overcurrent protection, busbar current limits, and code compliance
Certification
Roofing Foreman
National Roofing Contractors Association
Apply general workplace safety policies including OSHA regulations, hazard identification, and corrective actions on roofing job sites in compliance with employer and building owner requirementsMonitor and enforce crew safety behaviors including fall protection, PPE use, safe equipment operation, proper ladder use, and safe material handling throughout all construction phasesEnforce daily closeout protocols including securing roof assemblies, restricting public access to hazards, and maintaining job site housekeeping through project completionInspect and verify installation quality by confirming materials are installed per manufacturer instructions, substrates are properly prepared, and correct tools and equipment are used throughout the projectCoach and instruct crew members on proper work practices, problem-solving, and continuous improvement to maintain quality standards on roofing projectsPlan and stage work by ensuring required materials, tools, and equipment are on hand, sequencing tasks for maximum efficiency, and protecting customer property from damage
Certification
Signalperson
National Commission for the Certification of Crane Operators
Demonstrate standard crane hand signals for mobile and tower cranes during lifting operationsMaintain visibility with the operator to ensure clear signaling and safe load movementProvide clear and consistent hand signals to guide load handling effectivelySustain signaling actions while commands are being delivered to avoid miscommunicationCorrect operator actions when signals are not followed properly to maintain safe operationsUse communication equipment correctly by understanding its proper application and limitations
Certification
Solar Heating Installer (SHI)
North American Board of Certified Energy Practitioners
Review construction plans and create materials lists identifying special equipment, tools, and safety requirements for solar heating installationsAssemble, inspect, and prepare materials, tools, and personal protective equipment prior to beginning a solar heating installation projectCompare the system design to site conditions by verifying collector location, shading, storage tank sizing, and balance-of-system equipment suitabilityInspect, document, and report existing site conditions, hazards, code violations, and OSHA compliance requirements prior to installationPlan solar collector layout by locating structural members, marking attachment hardware, and determining pipe routing from collectors to balance-of-systemPlan mechanical room layout including system interconnections, storage tank placement, and utility service interruption notifications
Course
Tile Roof Installer
Tile Roofing Institute
Prepare roof surfaces by installing single and double-layer underlayment, vent pipe flashing, and batten systems for tile applicationInstall roof tiles using proper layout, loading, and eave details for vertical and horizontal alignmentApply flashings, valleys, skylights, and chimney details to ensure weathertight roof tile installationsInstall hip, ridge, gable, and eave details including barrel tile applications to complete a roof tile systemRepair and replace damaged roof tiles and install pre-engineered roof systems with proper ventilation