NOAA intends to award a sole-source purchase order to Environmental Resources Management Inc. (ERM) for Phase 2 of a marine mammal tissue analysis project to evaluate oil exposure. The period of performance is from the date of award through one year. The justification is that ERM possesses unique, unpublished methods and expertise developed during the prior phase, making them the only capable source. Firms believing they can meet the requirements may submit substantiating documentation to the point of contact within 15 days of this notice's publication for a potential competitive determination. The location for performance and a specific budget amount are not detailed in this description.