Explanation: With cloud providers hosting a number of different customers, it would be impractical for them to pursue additional certifications based on the needs of a specific customer. Cloud environments are built to a common denominator to serve the greatest number of customers. Especially within a public cloud model, it is not possible or practical for a cloud provider to alter its services for specific customer demands. Resource pooling and virtualization within a cloud environment would be the same for all customers, and would not impact certifications that a cloud provider might be willing to pursue. Regulations would form the basis for certification problems and would be a reason for a cloud provider to pursue specific certifications to meet customer requirements.