Local exhaust ventilation in Sharjah is addressed through OSHJ-GL-12 Local Exhaust Ventilation, Version 1 Rev 0, September 2021, issued by the Sharjah Prevention and Safety Authority under the Occupational Safety and Health System in Sharjah. It is a Sharjah Prevention and Safety Authority Guideline setting minimum acceptable requirements rather than federal law. Its approach combines entity responsibility, manufacturer-led inspection planning, technical examination and a mandatory record-retention clause.
Section 2 states: "This Guideline document has been developed to provide information to entities to assist them in complying with the requirements of the Occupational Safety and Health System in Sharjah. To achieve compliance in the Emirate of Sharjah, all entities are required to demonstrate a standard of compliance which is equal to or higher than the minimum acceptable requirements outlined in this Guideline document."
That wording defines both the status and practical effect of OSHJ-GL-12. The document is not described as federal legislation. It is a Sharjah Prevention and Safety Authority Guideline operating under the Occupational Safety and Health System in Sharjah, and entities must demonstrate a standard equal to or higher than its minimum acceptable requirements.
The Guideline therefore supplies a local compliance benchmark for the engineering life of LEV plant. Its provisions address why a system is needed, how it should be designed and installed, how its condition and performance should be checked, and how evidence of maintenance and testing should be retained.
Section 4.1 assigns six responsibilities to the entity: "Undertake a risk assessment to determine the risks and introduce adequate controls to reduce employees exposure to airborne contaminants; Identify locations where an LEV system is required to control the risk of airborne contaminants; Identify airborne contaminants by conducting air quality assessment and continuously monitor where applicable; Ensure an LEV system is designed and installed to adequately control exposure to an acceptable level; Provide safety information, instruction, supervision and training to employees; Maintain, test and inspect the LEV on a regular basis as per the manufacturer's manual."
These responsibilities connect plant decisions to the circumstances in which the LEV operates. The entity is expected to identify where extraction is required, arrange suitable design and installation, provide operational information and training, and maintain, test and inspect the system in accordance with the manufacturer's manual.
Air quality assessment and monitoring appear within the same responsibility list, but they should not be collapsed into the mechanical testing of the LEV. The Guideline treats contaminant identification, plant provision, employee instruction and plant maintenance as connected but distinguishable parts of control management.
The final responsibility establishes the manufacturer's manual as the stated reference for regular maintenance, testing and inspection. OSHJ-GL-12 does not replace that manual with a universal timetable or a single technical test procedure for every type of system.
Section 5.6 states: "Regular inspection, testing and maintenance of LEV systems is critical. The frequency and detail of the inspection, testing and maintenance should be planned by the entity at a minimum in accordance with the manufacturer's manual." The clause places planning responsibility on the entity and makes the manufacturer's manual the minimum stated basis.
Section 5.6 sets no fixed interval. The word "annual" appears zero times in the Sharjah Guideline. Frequency is therefore not supplied as a calendar rule by OSHJ-GL-12; it is planned by the entity at a minimum in accordance with the manufacturer's manual.
That position differs expressly from Abu Dhabi. ADPHC Code of Practice CoP 52.0 Local Exhaust Ventilation, Version 4.1, dated 27 February 2026, was issued by the Abu Dhabi Public Health Centre under ADOSH-SF and is mandatory for employers in the Emirate of Abu Dhabi; Sections 3.1.1(h) and 3.1.1(j) each require LEV testing and inspection at a minimum annually. Annual is a test interval and is not a measured quantity.
The contrast affects record interpretation. A Sharjah record should show how the selected frequency and level of detail reflect the manufacturer's manual and the entity's planning, whereas an Abu Dhabi record must also demonstrate compliance with the stated minimum annual test and inspection frequency.
Section 5.6.1 says that the entity should determine whether "LEV hoods are in good condition; Air is being effectively drawn into the extract booth; Any safety or warning devices are operational; Ducting is intact without holes or splits; The area is reasonably clean and contaminant free. The check is generally undertaken by the operator and should be recorded."
The visual inspection is therefore practical and condition-based. It looks for damaged hoods, ineffective draw into an extract booth, failed warning devices, damaged ducting and poor housekeeping around the installation. The Guideline identifies the operator as the person who generally undertakes the check and states that the check should be recorded.
No numeric acceptance value, measurement condition, instrument or universal visual-inspection interval is stated in Section 5.6.1. The provision is concerned with observable system condition and signs of effective operation. Its record can identify deterioration early and support decisions about maintenance or more detailed technical testing.
The visual check should remain distinguishable from the more detailed work in Section 5.6.2. A system may appear intact while its technical performance has changed, and an apparent reduction in draw may require measurements and comparison with the commissioning data rather than visual judgement alone.
Sharjah OSHJ-GL-12 Section 5.6.2 states: "The entity should conduct thorough examination and testing of the LEV, including but not limited to: A thorough visual examination to verify that the LEV is in efficient working order, in good repair and in a clean condition; Measuring and examining the technical performance to check conformity with commissioning data."
The Sharjah thorough examination described in Section 5.6.2 combines a detailed visual review with measurement and examination of technical performance against commissioning data. OSHJ-GL-12 does not publish a fixed interval for this work. No calendar frequency should therefore be added to the Guideline's detailed examination provision.
The commissioning comparison is an important engineering feature. It assumes that reliable original data, system documentation or other commissioning evidence can be identified and used as the baseline. Where such information is missing, incomplete or no longer representative because the system has been altered, that limitation should be recorded rather than replaced with an invented pass criterion.
The Sharjah thorough examination is part of the local Guideline's inspection and testing framework, not a term that should be transferred to the Abu Dhabi duty. ADPHC CoP 52.0 does not use that expression for its annual testing provisions.
Section 5.7 states: "The entity shall record and retain a logbook or suitable records of maintenance, inspections, examinations and tests carried out on LEV systems." This is the only clause in the whole Sharjah Guideline that uses the word "shall". Its mandatory wording makes retained plant history a central part of demonstrating compliance.
A suitable record can connect routine operator checks, identified defects, maintenance actions, technical measurements, examination findings and testing outcomes. The record should make clear which system was considered, what work occurred, who performed it, what reference information was used and what corrective action followed.
The logbook also supports assessment of recurring faults and changes over time. It can show whether filter problems, damaged ducting, warning-device failures or performance discrepancies were isolated events or repeating signs of plant deterioration. OSHJ-GL-12 does not prescribe a particular paper or electronic format, so the emphasis remains on completeness, retention and traceability.
Related subjects sit on sibling resources covering respirable crystalline silica, industrial hygiene including ventilation and LEV assessment from the occupational hygiene angle, VOCs and indoor chemicals including adhesives, sealants and solvents, and construction dust; this page remains limited to LEV as engineering plant.
Sharjah OSHJ-GL-12 is issued by the Sharjah Prevention and Safety Authority under the Occupational Safety and Health System in Sharjah and is a Guideline setting minimum acceptable requirements in the Emirate of Sharjah.
Sharjah OSHJ-GL-12 Version 1 Rev 0, September 2021, Sections 2, 4.1, 5.6, 5.6.1, 5.6.2 and 5.7.
Answer: No fixed annual interval is stated. OSHJ-GL-12 Local Exhaust Ventilation, Version 1 Rev 0, September 2021, was issued by the Sharjah Prevention and Safety Authority under the Occupational Safety and Health System in Sharjah and is a Sharjah Prevention and Safety Authority Guideline setting minimum acceptable requirements, not federal law. Section 5.6 says that the frequency and detail of inspection, testing and maintenance should be planned by the entity at a minimum in accordance with the manufacturer's manual, and the word "annual" appears zero times in the Guideline.
Answer: OSHJ-GL-12 Local Exhaust Ventilation, Version 1 Rev 0, September 2021, was issued by the Sharjah Prevention and Safety Authority under the Occupational Safety and Health System in Sharjah and is a Sharjah Prevention and Safety Authority Guideline setting minimum acceptable requirements, not federal law. Section 5.6.2 says that the entity should conduct a Sharjah thorough examination and testing process including a detailed visual examination and measurement of technical performance against commissioning data. No fixed interval is stated for that work in OSHJ-GL-12.
Answer: Yes. OSHJ-GL-12 Local Exhaust Ventilation, Version 1 Rev 0, September 2021, was issued by the Sharjah Prevention and Safety Authority under the Occupational Safety and Health System in Sharjah and is a Sharjah Prevention and Safety Authority Guideline setting minimum acceptable requirements, not federal law. Section 5.7 states that the entity shall record and retain a logbook or suitable records of maintenance, inspections, examinations and tests carried out on LEV systems, and it is the only clause in the Guideline that uses the word "shall".
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