"As it is now well documented that the UN Subcommittee and the ICAO Dangerous Goods Panel have determined that the thickness of the line on hazard labels has no bearing on safety, and the provisions in the ICAO Technical Instructions and IATA DGR will formally remove reference to the thickness of the line on hazard labels with effect 1 January 2019, please find attached a guidance document advising that the dangerous goods acceptance check should not consider the thickness of the line.
Please distribute this guidance to your contact as you see fit. This document will be posted on the IATA website and also on the DG Community."
You can download the IATA Guidance Document, as a PDF, by clicking on this link: "Specification of Hazard Labels".