Banks and other entities sometimes require an SS-4 document with the TAX ID populated to the TAX ID field in the upper right hand corner of the document, as part of proof of an Tax Identification Number. The IRS TAX ID online application process does not provide a prepared SS-4.
Earth pressure at rest is the earth pressure that occurs when the wall in contact with the soil is at rest. Earth pressure at rest is an intermediate state between active earth pressure and passive earth pressure. In general, as a retaining wall is displaced under the influence of the soil behind the wall, the
Obviously, the longer one stays near a source of radiation the greater will be the exposure. The same is true of proximity to the source; the closer one gets to a source of radiation the greater the exposure. Shielding is of special importance when time and distance cannot be completely utilized as safety factors. In such instances lead, which is an extremely dense material, is used as a protective device.