1) Yes. Hazardous wastes can be liquids, solids, contained gases, or sludges. 2) No. Under RCRA, the term \"solid waste\" means any waste, whether it is a solid, semisolid, or liquid. It is also regulated by RCRA. 3) RCRA Subtitle D focuses on the the primary planning, regulating, implementing, and enforcement entities for the management of nonhazardous solid waste, It regulates management of non hazardous waste. Solution 1) Yes. Hazardous wastes can be liquids, solids, contained gases, or sludges. 2) No. Under RCRA, the term \"solid waste\" means any waste, whether it is a solid, semisolid, or liquid. It is also regulated by RCRA. 3) RCRA Subtitle D focuses on the the primary planning, regulating, implementing, and enforcement entities for the management of nonhazardous solid waste, It regulates management of non hazardous waste..