Circular issued by International Group clubs NRC and MSRC – Addenda Concerning Use of Dispersants to Contracts for Tank Vessels Members will recall that, as from 22 February 2011, tank vessel operators were required to include a capability for the aerial application of dispersants in their vessel response plans (VRPs). Both of the main oil spill removal organisations (OSROs), Marine Spill Response Corporation (MSRC) and National Response Corporation (NRC), confirmed that they had such capability. However as advised in our Circular published on 29 August 2011, MSRC required that its customers sign an addendum (MSRC Addendum) to their standard service agreement before including MSRC dispersant capability in their VRP. The MSRC Addendum has the footer "( Version 22 August 2011 )". NRC are now introducing a similar addendum (NRC Addendum) to their existing contract: "Agreement for provision of Response Services," bearing the footer: "( Version September 15, 2004 )". The NRC Addendum is entitled "Alternative Technologies Amendment to Agreement for Provision of Response Resources (Tank Vessels)" and has footer " September 27, 2012 ". It will come into effect on 1 January 2013. Certain terms of both the MSRC Addendum and the NRC Addendum do not conform with the International Group (IG) guidelines on VRPs. Therefore, agreeing to the terms of either addendum could result in Members incurring liabilities which fall outside the scope of club cover. Members wishing to obtain additional cover from the market for such liabilities can contact the Managers for details (as previously advised in relation to the MSRC Addendum). However, it should be noted that this additional insurance provides a limited level of cover. For NRC clients, there is also the alternative of not signing the NRC Addendum, but instead paying an additional annual charge of USD 250 per vessel. This option would not prejudice club cover and would avoid the need for additional insurance. The full limits of club c