---
kind: "section"
citation: "33 C.F.R. § 101.505"
title: "33"
number: "101.505"
heading: "Declaration of Security (DoS)."
url: "https://uscodex.org/cfr/33/101.505"
---

# §101.505. Declaration of Security (DoS).

- (a) The purpose of a DoS, as described in SOLAS [Chapter XI-2](/cfr/33/chXI..2.md), Regulation 10, and the ISPS Code (Incorporated by reference, see [§ 101.115](/cfr/33/101.115.md)), is to state the agreement reached between a vessel and a facility, or between vessels in the case of a vessel-to-vessel activity, as to the respective security measures each must undertake during a specific vessel-to-facility interface, during a series of interfaces between the vessel and the facility, or during a vessel-to-vessel activity.
- (b) Details as to who must complete a DoS, when a DoS must be completed, and how long a DoS must be retained are included in parts [104](/cfr/33/part104.md) through [106](/cfr/33/part106.md) of this subchapter. A DoS must, at a minimum, include the information found in the ISPS Code, part B, appendix 1 (Incorporated by reference, see [§ 101.115](/cfr/33/101.115.md)).
- (c) All vessels and facilities required to comply with parts [104](/cfr/33/part104.md), [105](/cfr/33/part105.md), and 106 of this subchapter must, at a minimum, comply with the DoS requirements of the MARSEC Level set for the port.
- (d) The COTP may also require a DoS be completed for vessels and facilities during periods of critical port operations, special marine events, or when vessels give notification of a higher MARSEC Level than that set in the COTP's Area of Responsibility (AOR).

## Notes

### Amendments

[USCG-2003-14792, 68 FR 39278, July 1, 2003, as amended at 68 FR 60472, Oct. 22, 2003]

### Authority

Authority: 46 U.S.C. 70101-70104 and 70124; Executive Order 12656, 3 CFR, 1988 Comp., p. 585; 33 CFR 1.05-1, 6.04-11, 6.14, 6.16, and 6.19; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: USCG-2003-14792, 68 FR 39278, July 1, 2003, unless otherwise noted.

### Amendments

[USCG-2003-14792, 68 FR 39278, July 1, 2003, as amended at 68 FR 60472, Oct. 22, 2003]