Conditions for Using the Method of Explosive Ordnance Disposal under the Sea

Article 41 Technical Procedure for Investigation, Survey, and Explosive Ordnance Disposal (EOD) Issued Together with Circular 121/2021/TT-BQP (Effective From November 5, 2021)

The regulation on conditions for underwater EOD methods are as follows:

1. In cases where the EOD location is less than 2 nautical miles from the shore and the water depth is less than 25 m, the underwater EOD method specified in Section 3 Chapter III of this Procedure shall be applied; replacing the composite boat with a wooden boat with a carrying capacity of ≥ 3 tons equipped with a propulsion machine to conduct the work.

2. In cases where the EOD location is 2 nautical miles or more from the shore, and the water depth ranges from 25 m to 150 m, the detection method using sonar and magnetometer devices must be applied. For depths greater than 150 m, a technical construction plan and separate cost estimate must be formulated and submitted to the competent authority for approval.

3. Velocity, wave level, wind level

a) Ocean current velocity:

- Construction using bomb detection machines: ≤ 1.0 m/s;

- Construction using sonar and magnetometer devices: ≤ 2.5 m/s.

b) Wave level:

- Construction using bomb detection machines: ≤ level 3;

- Construction using sonar and magnetometer devices: ≤ level 4.

c) Wind level:

- Construction using bomb detection machines: ≤ level 3;

- Construction using sonar and magnetometer devices: ≤ level 5.

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Note on Abbreviation Conventions:

1. Explosive Ordnance: EO.

2. Investigation: Inv.

3. Survey: Surv.

4. Explosive Ordnance Disposal: EOD.

5. Investigation, Survey, and Explosive Ordnance Disposal: Inv, Surv, EOD.

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