• 0 through 55 years of age

• Adequate graft available

• Adequate organ function

• Eligible Diseases:

‣ Mucopolysaccharidosis Disorders:

• MPS IH (Hurler syndrome)

∙ MPS II (Hunter syndrome) if the patient has no or minimal evidence of symptomatic neurologic disease but is expected to have a neurologic phenotype

∙ MPS VI (Maroteaux-Lamy syndrome)

∙ MPS VII (Sly syndrome)

⁃ Glycoprotein Metabolic Disorders:

• Alpha mannosidosis

∙ Fucosidosis

∙ Aspartylglucosaminuria

⁃ Sphingolipidoses and Recessive Leukodystrophies:

• Globoid cell leukodystrophy

∙ Metachromatic leukodystrophy

∙ Niemann-Pick B patients (sphingomyelin deficiency)

∙ Niemann-Pick C subtype 2

⁃ Peroxisomal Disorders:

• Adrenoleukodystrophy with cerebral involvement

∙ Zellweger syndrome

∙ Neonatal Adrenoleukodystrophy

∙ Infantile Refsum disease

∙ Acyl-CoA-Oxidase Deficiency

∙ D-Bifunctional enzyme deficiency

∙ Multifunctional enzyme deficiency

∙ Alpha-methylacyl-CoA Racmase Deficiency (AMACRD)

∙ Mitochondrial Neurogastrointestingal Encephalopathy (MNGIE)

⁃ Severe Osteopetrosis (OP)

⁃ Hereditary Leukoencephalopathy with axonal spheroids (HDLS; CSF1R mutation)

⁃ Other Inherited Metabolic Disorders (IMD): Patients will also be considered who have other life-threatening, rare lysosomal, peroxisomal or other similar inherited disorders characterized by white matter disease or other neurologic manifestations for which there is rationale that transplantation would be of benefit, such as certain patients with Wolman's disease, GM1 gangliosidosis, I-cell disease, Tay-Sachs disease, Sandhoff disease or others.

⁃ Voluntary written consent