Accredited Laboratory Program. The Accredited Laboratory Program accredits nonfederal analytical chemistry laboratories to analyze meat and poultry food products for moisture, protein, fat, and salt (MPFS) content, and/or certain specific classes of chemical residues. Currently the specific chemical residues are chlorinated hydrocarbons (CHC), polychlorinated biphenyls (PCB), sulfonamides, nitrosamines, and arsenic.