Recent technological advancements that employ computer-based controls of hazardous energy (e.g., mechanical, electrical, pneumatic, chemical, radiation) conflict with OSHA's existing lock-out / tag-out standard.  The use of these computer-based controls has become more prevalent as equipment manufactures modernize their designs. Additionally, there are international standards harmonization concerns since this method of lockout/tag-out is more accepted in other nations. The Agency has recently seen an increase in requests for variances for these devices. An RFI would be useful in understanding the strengths and limitations of this new technology, as well as potential hazards to workers. Alternatively, the agency may hold a stakeholder meeting and open a public docket to explore the issue.