Subject 1998

Bulletin Dated: May 4, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Safety for Software in Programmable Components, UL 1998, are being proposed:

1. Clarification of Scope

2. Clarification of Process Definition and Risk Analysis

3. Clarification of Variable Initialization

4. Clarification Regarding Use of Volatile Memory for Program Execution and Data Storage During Operation

5. Addition of Consideration of Programmable Component Errata as a Potential Cause of Microelectronic Hardware Failures

6. Clarification of Requirements for User Cancellation

7. Clarification of Requirements for Unique Identifier

8. Clarification of Applicability of Appendix A