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MHI Certificate

Suppose your workplace is assessed and classified as MHI, what awaits you is to register your MHI for MHI certificate.

     For existing MHIs,

• by Dec 2016: MHI will be notified of Safety Case submission date & provisional MHI certificate details;
• from Sep 2017:  provisional MHI certificate will take effect  replace your current factory license;
• afterwards, MHI is to follow the timeline set by MHD for official registration of MHI certificate.

      For new MHIs,  you’ll need to apply MHI certificate instead of factory license.

MHI Registration Process

5 practical steps will guide you in MHI registration.

Step #1: MHI Application

Submit your completed MHI Application Form and MHI Assessment Form to MHD at contact_mhd@mom.gov.sg .

Step #2: Safety Case Preparation

MHIs are advised to start Safety Case Preparation as earlier as possible.  Earlier preparation will allow you more time to meet criteria stated in the Safety Case Assessment Guide (SCAG).

Please continue to subscribe to SafetyCase.sg, and we’ll share more perspectives in how to prepare Safety Case.

Step #3: Pre-Receipt meeting

It’s a Mandatory meeting between MHI and MHD, in order to help MHI prepare its Safety Case well before the submission.

6 months ahead of  Safety Case submission dateline, MHI’ll be appointed to meet MHD and discuss below topics:

• Descriptive information for your facility
• Predictive Aspects-methodology and selection of Major Accidents Scenarios (MAS) and Safety Critical Events (SCE).
• ALARP methodology and ALARP demonstration of 1 SCE.

Step #4: Safety Case Submission

For existing MHIs, MHD will inform your Safety Case submission dateline. So pay attention to MHD’s message to you via email and letter.

For new MHIs, your safety case submission dateline is 6 months before planned commissioning date.

Upon reception of your safety case, MHD will proceed to Safety Case Assessment & Site Verification, Review towards Acceptance, Acceptance and Proposed Intervention Priority & Intervention Plan.  The process is illustrated as below:

Step #5: Issue MHI Certificate of Registration

• MHI will be notified to make a payment for MHI Registration Fees via LicenceOne .
• MHI Certificate of Registration will be issued,valid for 5 years.
• MHI Certificate of Registration will replace Provisional MHI Registration.

Reference: Guide to WSH(MHI) Regulations(https://www.wsh-institute.sg/files/wshi/upload/event/file/PastEvents/MHI%20Symposium/Guide%20to%20WSH%28MHI%29%20Regs%20-%20Lim%20Eng%20Wee.pdf)

What is MHI

MHI is the short form of “Major Hazard Installation”, in the context of Singapore’s WSH(MHI) Regulation.

MHIs refer to fixed installations, including Petroleum refining and manufacturing facilities, chemical processing plants and facilities where large quantities of toxic and flammable substances are stored and/or used.

MHI classification

A workplace will be classified  as an MHI under the WSH(MHI) Regulations, if it meets both of below two conditions:

1. its nature of work activities, and
2. its inventory levels of dangerous substances (present or likely to be present) meeting or exceeding threshold quantities.

For condition 1, the works activities involve processing, manufacturing or having bulk storage by way of trade or for the purpose of gain of any dangerous substances specified in the First Schedule of WSH(MHI) Regulation.

Condition 2, on the quantity of dangerous substances,will be satisfied  if at least one of the below two criteria is met:

2.1 Quantity of the individual dangerous substance present or is likely be present equals or exceeds the prescribed threshold quantities; or

2.2 aggregation of the ratios of dangerous substances for one or more hazard classes(i.e. Physical, Health or other hazards) equals to or exceeds 1.

How to determine if your workplace is an MHI

As per MHD’s recommendation, you can

• Use the MHI assessment form.
• Refer to the Guide to determine quantities of dangerous substances.
• Where necessary, refer to the reference list of common dangerous substances hazard classification for the additional information on the classification of the dangerous substances.

MHI Application

If your workplace is assessed to be an MHI, you need to submit the completed MHI application form to MHD at contact_mhd@mom.gov.sg

Reference:

1) What are MHIs (http://www.mom.gov.sg/workplace-safety-and-health/major-hazard-installations/what-are-mhis)