Guidelines to Submit Specified Forms (BO Case) to
Independent Checking Unit (ICU) by Using Email

1. General procedures of submitting specified forms (BO Case) to ICU via e-mail

   a) Applicants can submit the completed and digital signed PDF forms for application under Buildings Ordinance (BO Case) for Alterations and Additions (A&A) Works, Minor Works Control System, Mandatory Building Inspection Scheme (MBIS) and Mandatory Window Inspection Scheme (MWIS), to ICU via emails. The specified forms could be downloaded at Buildings Department’s website (https://www.bd.gov.hk/en/resources/forms/index.html);

   b) Applicant should submit the application to the dedicated e-mail box for receiving email submission

   • Email Submission for A&A works:
     Please attach completed and signed PDF forms for building related plans at the email and send to receipt.aa@hd.gov.hk
   • Email Submission for Minor Works Control System to ICU:
     Please attach completed and signed PDF forms at the email and send to receipt.mwt@hd.gov.hk
   • Email Submission for Mandatory Building Inspection Scheme (MBIS), Mandatory Window Inspection Scheme (MWIS) to ICU:
     Please attach completed and signed PDF forms at the email and send to receipt.mbist@hd.gov.hk

   c) Applicant should include the following information in the contents of the submission email:

   • (i) The address of the proposed works;
   • (ii) The brief descriptions of the proposed works

   d) Applicants may refer to items 2 and 3 for the requirements of the computer system and digital certificate respectively;

   e) Applicants may refer to items 4 to 6 for the procedure of attaching files to e-forms, removing attached files from e-forms and the requirements on the attached files respectively;

   f) Applicants may refer to items 7 and 8 for the procedure of adding e-signatures on e-forms and removing e-Signature from e-form respectively;

   g) A reply email confirming the receipt of the e-form would be sent to the applicant upon the successful receipt of the submission by ICU.

   h) Applicant should print out the auto-reply email from ICU and bring it together with the "Appendix A of PNAP APP-55 - Payment of Fees on Submission of Plans" for the payment of corresponding A&A submission.

2. System Requirements

   Please refer to the system requirements as shown in Buildings Department’s website:
   (https://www.bd.gov.hk/en/resources/forms/form_req.html)

3. Requirements of digital certificate
   • The requirements on digital certificate is as follows:
   • (i) Either e-Cert (Organizational) / e-Cert (Personal) issued by a Recognized Certification Authority (currently Hong Kong Post Certification Authority or Digi-Sign Certification Services Limited) under the latest provisions of the Electronic Transaction Ordinance (Cap. 553)
   • (ii) Certificate Standard: X.509v3
   • (iii) 2048-bit RSA key
   • (iv) In *.p12 file format
4. How to attach files to e-forms?

   Please refer to the guidelines for attaching files to e-forms as shown in Buildings Department’s website: (https://www.bd.gov.hk/en/resources/forms/form_attach.html)

5. How to remove attached files from e-forms?

   Please refer to the guidelines for removing attached files from e-forms as shown in Buildings Department’s website: (https://www.bd.gov.hk/en/resources/forms/form_remove.html)

6. Requirements on attaching files and file size
   • (i) All files should be attached to the PDF form before the form is digital signed;
   • (ii) Attached files should also be digitally signed, otherwise ICU reserves its right to reject the attached files;
   • (iii) The overall size of the email for submitting the PDF form, including attached files and e-Signatures, should not be greater than 25MB.
7. How to add e-Signatures on e-forms?

   Please refer to the guidelines for adding e-Signatures on e-forms as shown in Buildings Department’s website: (https://www.bd.gov.hk/en/resources/forms/form_addsign.html)

8. How to remove e-Signatures from PDF forms?

   Please refer to the guidelines for removing e-Signatures from PDF forms as shown in Buildings Department’s website: (https://www.bd.gov.hk/en/resources/forms/form_removesign.html)