OHSAS18001 - 23Century.id

Summary and Background

OHSAS 18001is a standard for Occupational Health and Safety Management System (OSHMS).

OHSAS stands for Occupational Health and Safety Assessment Series, which sets out management system requirements to prevent workplace accidents and occupational ill-health.

The background to this was the existence of diverse national standards in the 1990s (e.g., BS 8800 in the UK, AS/NZS 4801 in Australia), which meant there was no uniform international certification framework. OHSAS 18001 was developed by consensus among certification bodies to address this need.

With the advent of OHSAS 18001, organizations gained a third-party certification standard for Occupational Health and Safety Management Systems, aligned with ISO 9001 (quality) and ISO 14001 (environmental). This standard is applicable across various sectors — including manufacturing, construction, and services — and helps strengthen workplace accident prevention management.

Subsequently, ISO published ISO 45001 in 2018 as the successor to OHSAS 18001. Many organizations transitioned to ISO 45001; however, the principles of OHSAS remain fundamental to current occupational safety and health management practices.

Key Requirements and Standards

The requirements for OHSAS 18001 Occupational Health and Safety Management Systems (OHSMS) follow the same PDCA cycle as other management standards: policy establishment, planning, implementation and operation, checking, and management review.

The requested key points can be summarized as follows.

Establishment of Occupational Health and Safety Policies

The management formulates an OH&S policy that encompasses employee safety and health protection, a commitment to regulatory compliance, and a dedication to continuous improvement.

Leadership commitment is key, and this policy must be communicated to all employees.

Hazard Identification and Risk Assessment

All work activities and equipment in the workplace are analyzed to identify hazards, and their respective risks (probability of occurrence × impact) are then assessed. Examples include the risk of falling during work at height or the hazard of chemical exposure; significant risks must be identified and prioritized.

Risk Mitigation and Goal Setting Actions

For identified significant risks, risk reduction measures are designed and implemented. These measures follow the hierarchy of controls, such as risk elimination, substitution/reduction, down to the use of personal protective equipment; efforts are directed towards implementing higher-level controls where feasible.

Occupational safety and health objectives (e.g., "zero workplace accidents," reduction in near-miss incidents) are established and detailed in the operational plan.

Compliance with Legal Requirements

Identify relevant Occupational Health and Safety (OHS) regulations and legislation (e.g., Occupational Health and Safety Acts, relevant standards or notices) and implement mechanisms to ensure compliance. This includes, for example, the deployment of certified personnel, adherence to work procedures, and conducting periodic inspections to ensure legal obligations are met.

Structure and Clarification of Responsibilities

Establishing an Occupational Health and Safety (OHS) management structure and clearly defining responsibilities and authorities at each level. Examples include the designation of a safety manager, the formation of a safety committee, and the appointment of task supervisors; employee participation is also encouraged.

Systematically conduct the required training (safety education, evacuation drills, etc.).

Operations Management

Establishing safe work procedures, installing safety signs/labels, providing and managing the use of personal protective equipment (PPE), as well as equipment maintenance and workplace environmental monitoring, to control hazards in day-to-day operational activities.

In the event of changes (e.g., installation of new equipment or process modifications), a risk assessment must be conducted and safety measures implemented prior to execution. Furthermore, emergency response plans (e.g., fire, earthquake, chemical spills, etc.) must be established, and preparedness drills conducted.

Accident Investigation and Corrective Actions

In the event of a workplace accident or near-miss, conduct a thorough investigation into its root causes and implement preventive measures to prevent recurrence. Document incidents and non-conformities, then apply corrective and preventive actions horizontally to other tasks with similar risks.

Performance Measurement and Audit

Monitor the achievement of safety objectives and KPIs (e.g., accident rates, near-miss counts) and conduct periodic evaluations. Perform internal audits to ensure the system operates in compliance with standard requirements; should non-conformities be identified, implement corrective actions and document the results.

Continuous Improvement

Senior management conducts periodic reviews of the occupational safety and health management system and implements necessary adjustments. This cycle drives continuous improvement in safety and health performance, thereby creating a progressively safer workplace.

The above are the main requirements of OHSAS 18001; the essence is to build a capable system.Managing workplace hazards systematically and protecting the safety and health of workers..

This content is consistent with Occupational Safety and Health (OSH) management guidelines in several countries (including Japan); for example, the implementation of risk assessments and efforts towards zero workplace accidents, which are common industry practices.

A distinguishing characteristic of OHSAS 18001 is its emphasis on integrating these elements into an organization's management system, thereby ensuring alignment with other management functions.

It should be noted that ISO 45001 introduces concepts such as "worker participation" and "understanding of the organizational context"; however, its fundamental framework is largely derived from OHSAS 18001.

Meaning and Benefits of Certification

OHSAS 18001認証を取得することは、企業が従業員の安全と健康を最優先に考える経営を行っているという強いメッセージになります。対外的には、労働安全衛生への取り組みが認証という形で証明されることで、ステークホルダーからの信頼が高まります。

For example, when multinational corporations select suppliers, labor conditions are often a key consideration. Companies with OHSAS 18001 certification are readily recognized for their robust occupational health and safety management, which can significantly expand their business opportunities.

また、近年ESG（環境・社会・ガバナンス）投資でも労働安全は社会性評価の一環となっており、認証取得は企業の社会的責任（CSR）を果たしている証左として投資家にもアピールできます。

労働災害防止は本来社内の話ですが、それを敢えて認証取得までして取り組む姿勢は、企業の誠実さや持続可能な経営へのコミットメントを示す指標ともなりえます。

社内的メリットも大きく、まず労働災害リスクの低減が最大の利点です。OHSAS 18001導入により体系的なリスクアセスメントと対策が定着すれば、事故やヒヤリハットが減少します。

実際に認証取得後に労災発生率が大幅に改善した事例は多く、企業にとっては人的被害・損失の削減につながります。労災が減れば休業補償や設備修理などの直接費用だけでなく、作業停止や信用失墜といった間接損失も避けられます。

安全は最大の生産性向上策という言葉もあり、「安全なくして生産なし」の原則が実証される結果となります。

また、従業員のモチベーション向上という効果も見逃せません。

安全で健康的な職場環境が確保されていることは、働く人に安心感を与えます。経営が本気で安全に取り組んでいる姿勢を示すことで、従業員の企業に対する信頼感やエンゲージメントが高まります。

When frontline workers feel their safety is ensured, they can focus more effectively on their duties, which in turn leads to improved quality. Moreover, this also tends to invigorate employee-driven improvements, such as safety suggestions and KY (Hazard Prediction) activities.

これは組織風土の改善につながり、職場のコミュニケーション活性化やチームワーク向上といった波及効果も期待できます。

Obtaining OHSAS 18001 certification also contributes to legal compliance. While occupational health and safety regulations are extensive, the management system establishes a mechanism for periodically verifying compliance status, thereby preventing inadvertent violations.

行政当局からの信頼も高まり、万一問題が起きても「しっかり管理していた」というエビデンスになる場合があります。また近年重要視されるメンタルヘルスや過重労働対策（過労死防止）なども、安全衛生管理の一環として捉えることで、幅広い労務リスクの低減につながります。

総合すると、OHSAS 18001取得は「従業員を大切にする企業」としての姿勢を内外に示し、リスク低減と組織活性化を同時に実現するメリットがあるのです。

認証が製品やサービス、消費者に与える影響

一見すると労働安全衛生は社内問題であり、消費者には直接関係がないように思われます。しかし、実は安全な職場環境で働く従業員が生み出す製品・サービスは、品質面でも安定しやすく結果的に消費者に良い影響を与えます。例えば労働災害が頻発するような現場では作業中断や人員不足が起こりやすく、生産に乱れが生じ品質不良品が出たり納期遅延が発生するリスクがあります。逆に安全管理が行き届いた職場では、作業者が安心して仕事に取り組めるためミスも減り、生産計画通りに高品質な製品が供給されます。消費者に届くのは安定した品質の製品であり、納期遅れ等による迷惑も被りにくくなります。

また、安全に配慮した製造プロセスはときに製品自体の安全性にも関わります。例えば食品工場で従業員の衛生管理や健康管理が徹底されていれば、異物混入や食品汚染のリスクが低減し、消費者は安全な食品を口にできます。

建設現場で労働安全が守られ品質管理も良好であれば、できあがった建築物は高品質で安全性の高いものになるでしょう。このように安全な作業は安全な製品に通じる面があり、間接的に消費者の利益となっています。

サービス業でも同様です。

例えば運輸業でドライバーの過重労働がなく安全教育が徹底されていれば、交通事故が減り配送物が破損したり遅延したりすることも少なくなります。乗客にとっても安全な輸送サービスを受けられる利点があります。

エンターテイメント業界でも、スタッフや出演者の安全が確保された現場から生まれるコンテンツは、安定的に提供され消費者を失望させません。近年はイベントでの事故や工事現場事故がニュースになることもありますが、安全管理がしっかりした企業のサービスはそのようなトラブルとも無縁でしょう。

さらに、現代の消費者は単に製品・サービス自体の価値だけでなく、その背景にある企業の姿勢にも注目します。

労働者を搾取して作られた製品や、危険と隣り合わせの現場で提供されるサービスに対して、倫理的な懸念を持つ人もいます。OHSAS 18001（現在はISO 45001）認証企業の製品・サービスは、「この製品は従業員の安全と健康が守られた環境で作られている」という安心感を与えることができます。

This significantly influences consumer purchasing behavior, making it easier to gain support from segments that prioritize sustainability and CSR. In essence, health and safety certifications, much like quality and environmental certifications, serve as a testament to a company's integrity, thereby fostering consumer trust.

まとめると、労働安全衛生の充実は消費者に直接アピールされるものではありませんが、その効果は確実に製品・サービスの安定供給と品質向上、ひいては消費者満足につながっています。

The virtuous cycle of confidently purchasing and utilizing products and services manufactured in a workplace that ensures employee safety and well-being is only made possible by a system such as OHSAS 18001 (ISO 45001).

OHSAS 18001 Standard