Is saliva considered a bloodborne pathogen risk?

Generally, no. Saliva falls under OPIM in only two situations: during dental procedures, or when it is visibly contaminated with blood. Outside those cases, saliva sits outside the scope of the OSHA standard, alongside urine, sweat, tears, and vomit — unless visible blood is present. The dental exception trips people up most often.

How long after a needlestick can you start PEP?

Post-exposure prophylaxis for HIV is time-critical and should begin as soon as possible — ideally within hours, not days. The exact window and regimen are clinical decisions, set out in the 2025 US Public Health Service guidance and determined by a treating physician. Do not self-manage or wait; seek immediate occupational-health or emergency evaluation. This is medical, not HSE, territory.

Can you get a bloodborne disease from intact skin contact?

Intact skin is an effective barrier and is not, on its own, a transmission route for bloodborne pathogens. Risk arises when skin is broken — cuts, abrasions, dermatitis, or open lesions — or when blood or OPIM reaches a mucous membrane in the eyes, nose, or mouth. That distinction is why splash protection and wound care matter more than fear of casual contact.

Do tattoo artists need bloodborne pathogens training?

Yes, where occupational exposure is reasonably anticipated — and for tattoo and body-art work, repeated skin penetration means it almost always is. Beyond the federal expectation, many state and local jurisdictions add their own body-art licensing and bloodborne pathogens training rules. Practitioners should check both the occupational duty and the local body-art regulations that apply to their premises.

What is the difference between an exposure incident and an exposure determination?

An exposure determination is a planning exercise: identifying which job roles have reasonably anticipated contact with blood or OPIM, made without regard to PPE use. An exposure incident is an actual event — a specific eye, mouth, mucous membrane, non-intact skin, or percutaneous contact with blood or OPIM. One shapes the program; the other triggers the response and follow-up.

Does an OSHA-compliant program meet UK or EU requirements?

No. OSHA's 29 CFR 1910.1030 is a standalone standard, while UK and EU duties layer sharps-specific requirements onto separate risk-assessment law — COSHH and the Health and Safety at Work Act in the UK, and national transpositions of Directive 2010/32/EU in the EU. A US program transferred wholesale will leave gaps abroad, so duties must be mapped jurisdiction by jurisdiction.

Raja Usman | Occupational Health, Safety and Environment Blog

Bloodborne Pathogens: Hazards & Safety Procedures Guide

June 18, 2026June 10, 2026 Author Raja Usman

Healthcare worker in protective gown and gloves disposes of medical waste into a red sharps container in a clinical laboratory setting.

TL;DR — Key Numbers Bloodborne pathogens are infectious microorganisms in human blood — primarily hepatitis B (HBV), hepatitis C (HCV), and HIV — that can cause serious disease. At work, they spread mainly through needlestick or sharps injuries and through blood or infectious fluids contacting the eyes, nose, mouth, or non-intact skin. Intact skin is … Read more

IMDG Code: Guide to Shipping Dangerous Goods by Sea (2026)

May 25, 2026May 22, 2026 Author Raja Usman

Two workers in safety gear inspect hazardous material drums loaded in a shipping container at a busy port with cranes and stacked cargo ships in the background.

TL;DR The IMDG Code is the international regulatory framework, published by the International Maritime Organization, that governs the classification, packaging, marking, labelling, documentation, stowage, and segregation of dangerous goods transported by sea in packaged form. Mandatory under both SOLAS Chapter VII and MARPOL Annex III, the Code applies to all ships in over 150 countries … Read more

Asbestos Register: What It Must Contain | Compliance Guide

May 20, 2026May 19, 2026 Author Raja Usman

Two construction workers in safety vests and hard hats inspect a modern underground corridor lined with numbered doors, with one crouching to examine equipment on the floor while the other takes notes on a clipboard.

TL;DR An asbestos register is a live compliance document that records the identification, location, type, quantity, condition, and risk assessment of all known and presumed asbestos-containing materials (ACMs) in a building. Under UK law (CAR 2012, Regulation 4), it must be kept current and made available to anyone who may disturb ACMs. In Australia, WHS … Read more

Bolt Tightening Structural Steel Connections: Safety & Methods

May 14, 2026May 13, 2026 Author Raja Usman

Two construction workers wearing safety gear and harnesses work on a steel structural beam at a high-rise building site, with one using a power tool while the other assists.

TL;DR Bolt tightening in structural steel must achieve a defined tension state — snug-tight, pretensioned, or slip-critical — specified by the engineer of record and installed using one of five methods recognised by the RCSC Specification and EN 1090-2: turn-of-nut, calibrated wrench, twist-off, direct tension indicator, or combined method. A high-strength structural bolt is not … Read more

Workplace Mental Health: Complete Employer’s Guide (2026)

May 12, 2026May 10, 2026 Author Raja Usman

A diverse team of six professionals sits around a wooden conference table during a business meeting in a modern office with floor-to-ceiling windows, with a bar chart displayed on a screen behind them.

TL;DR — What Every Employer Needs to Know Workplace mental health refers to the psychological well-being of employees as influenced by work design, organizational practices, management behaviors, and workplace culture. Employers have legal duties across most jurisdictions to assess and manage psychosocial risks — factors like excessive workload, poor job control, bullying, and role ambiguity … Read more

Heat Exhaustion: Symptoms, Causes & Field Response Guide

May 9, 2026May 8, 2026 Author Raja Usman

Construction workers in orange safety gear and hard hats gather under a tan canopy on a job site, reviewing documents and equipment with industrial piping and machinery visible in the background.

TL;DR I was conducting a heat stress assessment on a pipeline construction project in the Gulf during peak summer. Ambient temperature had climbed past 48°C by 10:30 AM. A welder’s helper sat down on a pipe rack, helmet still on, gloves still on, staring at the ground. His buddy assumed he was resting. Twenty minutes … Read more

What Is a DSE Assessment? Complete Employer Guide (2026)

April 24, 2026April 23, 2026 Author Raja Usman

Two professionals discuss data analytics with a seated colleague at a modern office workstation displaying spreadsheets on multiple monitors in a bright, open-plan workspace.

TL;DR — What Employers Need to Know A DSE assessment is a structured evaluation of how an employee interacts with their entire workstation — display screen, keyboard, mouse, chair, desk, lighting, and working patterns — carried out to identify health risks from prolonged screen use and determine the controls needed to reduce them. Under the … Read more

Difference Between LOLER and PUWER: Full UK Comparison Guide

April 22, 2026April 18, 2026 Author Raja Usman

Industrial warehouse workers in safety gear inspect and secure heavy lifting chains attached to a 20-tonne overhead crane system during equipment maintenance.

The first LOLER thorough examination report I ever signed off was on a 20-tonne overhead gantry crane in a steel fabrication shop — running two shifts, six welders below it at any moment, a magnet attachment swinging coil after coil onto cutting beds. The maintenance manager handed me a PUWER inspection certificate from three months … Read more

DSEAR Risk Assessment: Step-by-Step Process Guide

April 22, 2026April 17, 2026 Author Raja Usman

Two technicians in white protective suits and safety equipment inspect industrial processing equipment in a large manufacturing facility with metal tanks and piping systems.

Regulation 5(1) of DSEAR 2002 reads that the employer “shall make a suitable and sufficient assessment of the risks… which arise from” a dangerous substance. Three phrases in that clause — suitable and sufficient, before work is carried out, and arise from that substance — have carried more weight in HSE enforcement than most duty … Read more

OSHA Fall Protection Guidelines: Standards & Field Requirements

April 22, 2026April 13, 2026 Author Raja Usman

Construction worker wearing orange safety gear and harness crouches on steel beam at elevated job site while supervisor in yellow vest observes and takes notes.

TL;DR I was halfway through a steel erection walkdown on a commercial build in the Midwest when I saw a connector working two stories up with a harness on his back — unclipped. The lanyard was coiled over his shoulder like a garden hose. When I stopped the job, the foreman told me the crew … Read more