Sec. 529A ABLE accounts may be set up before the IRS issues guidance. By Sally P. Schreiber, J.D. The IRS announced on Tuesday that state ABLE programs that are established before the Service issues guidance under Sec. 529A will be deemed to comply with the rules when they are issued.
ORDINARY PORTLAND CEMENT (OPC). Ordinary Portland Cement (OPC) is the most common cement used in general concrete construction when there is no exposure to sulphates in the soil or groundwater.RDINARY PORTLAND CEMENT (OPC). Ordinary Portland Cement (OPC) is the most common cement used in general concrete construction when there is no exposure to sulphates in the soil or groundwater.
OPC typically means O rdinary P ortland C ement. This is standard concrete used for many purposes. PPC mean P ozzolanic P ortland C ement. Pozzolans are siliceous material than can be added to concrete mixtures, potentially lower the mix cost without harming the performance characteristics.rdinary Portland Cement (OPC) and Portland Pozzolana cement (PPC) differ primarily in their composition ultimately affecting its applicability. PPC commonly has pozzolan material added to cement (either before clinkering or added to ground clinker). Pozzolan commonly used is fly as and is put upto 15%.