Section 62.2155 - Identification of plan-negative declaration(a) Letter from the District of Columbia Department of Health, Environmental Health Administration, submitted November 27, 2001, certifying that there are no existing commercial/industrial solid waste incineration units within the District of Columbia that are subject to 40 CFR part 60, subpart DDDD.(b) Letter from the District of Columbia, District Department of Energy & Environment, submitted November 8, 2013, certifying that there are no existing commercial/industrial solid waste incineration units within the District of Columbia that are subject to 40 CFR part 60, subpart DDDD. 82 FR 20278 , May 1, 2017 82 FR 20278, 6/30/2017; 82 FR 20278, 5/1/2017