Vehicle Excise Duty (VED or Road Tax) as it applies to motorhomes. It came to our attention that there was an anomally in the classification for road tax purposes of some new motorhomes since the introduction of Graduated Vehicle Excise Duty in 2001 (where the duty paid is related to the amount of CO2 produced).t came to our attention that there was an anomally in the classification for road tax purposes of some new motorhomes since the introduction of Graduated Vehicle Excise Duty in 2001 (where the duty paid is related to the amount of CO2 produced).
substance-related disorder. Any disorder related to drug abuse or the effects of medication. Substances include alcohol, amphetamines, anxiolytics, cannabis, cocaine, hallucinogens, hypnotics, inhalants, methamphetamine, nicotine, opioids, phencyclidine (PCP), and sedatives.ubstance-related disorder. Any disorder related to drug abuse or the effects of medication. Substances include alcohol, amphetamines, anxiolytics, cannabis, cocaine, hallucinogens, hypnotics, inhalants, methamphetamine, nicotine, opioids, phencyclidine (PCP), and sedatives.
Dual diagnosis. This article is about co-occurring mental disorder and substance abuse. For the general definition of any two diagnoses together, see Comorbidity. Dual diagnosis (also called co-occurring disorders, COD) is the condition of suffering from a mental illness and a comorbid substance abuse problem. There is considerable debate surrounding the appropriateness of using a single category for a heterogeneous group of individuals with complex needs and a varied range of problems.