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CLEARANCE, com. law. The name of a certificate given by the collector of a port, in which is stated the master or commander (naming him) of a ship or vessel named and described, bound for a port, named, and having on board goods described, has entered and cleared his ship or vessel according to law.
     2. The Act of Congress of 2d March, 1790, section 93, directs, that the master of any vessel bound to a foreign place, shall deliver to the collector of the [dis ot?] from which such vessel shall be about to depart, a manifest of all the cargo on board, and the value thereof, by him subscribed, and shall swear or affirm to the truth thereof; whereupon the collector shall grant a clearance for such vessel and her cargo; but without specifying the particulars thereof in such clearance, unless required by the master so to do. And if any vessel bound to any foreign place shall depart on her voyage to such foreign place, without delivering such a manifest and obtaining a clearance, the master shall forfeit and pay the sum of five hundred dollars for every such offence. Provided, anything to the contrary notwithstanding, the collectors and other officers of the customs shall pay due regard to the inspection laws of the states in which they respectively act, in such manner, that no vessel having on board goods liable to inspection, shall be cleared out, until the master or other person shall have produced such certificate, that all such goods have been duly inspected, as the laws of the respective states do or may require, to be produced to the collector or other officer of the customs. And provided, that receipts for the payment of all legal fees which shall have accrued on any vessel, shall, before any clearance is granted, be produced to the collector or other officer aforesaid.
     3. According to Boulay-Paty, Dr. Com. tome 2, p. 19, the clearance is imperiously demanded for the safety of the vessel; for if a vessel should be found without it at sea, it may be legally taken and brought into some port for adjudication, on a charge of piracy. Vide Ship's papers.

References in periodicals archive ?
Nevertheless, even though the lung health of children with impaired mucociliary clearance depends upon routine airway clearance treatment, because of the technical difficulties and "burden of care" associated with CPT, it is, for most families, an impractical and unrealistic treatment for airway clearance problems.
Asthma, chronic cigarette smoking and cystic fibrosis also impair mucociliary clearance, and must be excluded before poor MC performance is attributed to infection.
CONCLUSIONS: Alterations in somatic growth, lung development, and the expression of genes involved in mucociliary clearance and innate immunity in the lung are potential mechanisms through which early life arsenic exposure impacts respiratory health.
Comparison of three methods for measuring nasal mucociliary clearance in man.
brevis that cause classic red tide symptoms of bronchoconstriction, watering eyes, and slowed mucociliary clearance.
Our clinical experience suggests that this cost-effective therapy will offer new hope for enhanced mucociliary clearance in CF, coupled with chest physiotherapy, compliance with regimen, prevention of infection, diet and enzymes, and huff cough/breathing retraining.
Bronchitol increases mucociliary clearance and will be the first approved therapy in Europe with this mechanism of action and has been shown to improve both lung function and reduce exacerbations when added to standard medications in use today.
2) Improvement in mucociliary clearance is well documented with use of both normal as well as hypertonic saline.
2-4) Potential risk factors for the development of MEE in non-ICU hospitalized patients include a supine body position, the use of an orogastric or nasogastric feeding tube, medications that may impair mucociliary clearance, and bacterial colonization of the upper aerodigestive tract.
Human airway epithelia function in barrier formation, defense against pathogens, and mucociliary clearance.