4 GUIDELINES FOR THE ON-BOARD USE AND APPLICATIONS OF COMPUTERS
The Working Group studied the document NAV 44/13 which had been forwarded from the Sub-Committee on Ship Design and Equipment. The Working Group considered the proposed guidelines to be useful but noted that in the case of navigation and communication equipment the Organization had adopted many Performance Standards which contain specific requirements. The Working Group therefore expanded the text to add a reference to Performance Standards noting that these take precedence over Guidelines. With this change the Working Group prepared the text, given in annex 5, as a MSC Circular on Guidelines for the on-board use and applications of computers, as requested, for submission to the Committee for approval.
5 ACTION REQUESTED OF THE SUB-COMMITTEE
5.1 The Sub-Committee is invited to：
.1 instruct the Secretariat to convey the draft SN Circular- Guidance on chart datums and accuracy of position on charts to IHO for consideration and submission of their comments to NAV 45 for consideration (paragraph 2.1 and annex 1);
.2 invite the Committee to include in the Sub-Committee's work programme an item dealing with review of performance standards for radionavigational shipborne receivers (paragraph 2.7);
.3 consider the draft amendments to performance standards, for ECDIS and decide, as appropriate (paragraphs 2.8 to 2.11, and 2.14 to 2.18 and annex 4 to annex 2);
.4 consider the draft SN/Circ. on Differences between RCDS and ECDIS for submission to MSC 70 for adoption (paragraph 2.12 and annex 3);
.5 invite the Committee to include in the work programme of the Sub-Committee an item regarding "IBS operational aspects" with a target completion date of [2000] (paragraph 2.20);
.6 invite Finland, using NAV 44/INF.3, to prepare a draft MSC Circular on IBS operational matters for consideration of NAV 45 (paragraph 2.20);
.7 consider and agreed on performance standards, for adoption by MSC 70, as follows：
.7.1 Integrated Navigation Systems (paragraph 2.21, annex 3 to annex 2);
.7.2 Sound reception systems (paragraph 2.22 and annex 1 to annex 2); and
.7.3 Marine Transmitting Magnetic heading Devices (TMHD) (paragraph 2.25, annex 2 to annex 2);
