O. Mental health facilities, mental retardation facilities or substance abuse facilities that are contractors under or receiving support under the Federal Community Mental Health Centers Act or its successors, or receiving support from the Department of Health and Human Services pursuant to Title 5, section 20005 or Title 34-B, section 3604, 5433 or 6204;

P. Regional planning commissions and councils of government established in accordance with Title 30-A;

Q. Incorporated nonprofit memorial foundations that primarily provide cultural programs free to the public, historical societies and museums;

R. Licensed, incorporated nonprofit nursery schools and day- care centers;

S. Any church-affiliated nonprofit organization that operates, under a charter granted by the Legislature, a residential home for adults;

T. Incorporated nonprofit organizations providing temporary residential accommodations to pediatric patients suffering from critical illness or disease such as cancer or who are accident victims, to adult patients with cancer or to the families of the patients;

U. Incorporated nonprofit organizations providing temporary residential accommodations or food, or both, to hospital patients or to the families of hospital patients;

V. Incorporated nonprofit organizations that provide free temporary emergency shelter or food for underprivileged individuals in this State;

W. Incorporated nonprofit child abuse and neglect councils as defined in Title 22, section 3872, subsection 1-A;

X. Statewide organizations that advocate for children and that are members of the Medicaid Advisory Committee;

Y. Community action agencies designated in accordance with Title 22, section 5324;

Z. Any nonprofit free public lending library that is funded in part or wholly by the State or any political subdivision of the State or the Federal Government;