Difference between Exempt and Unratable

EXEMPT vs UNRATABLE: NOUN

In England, one of four officers of the yeomen of the royal guard, styled corporals in their commission; an exon.
One who is exempted or freed from duty; one dispensed from or not subject to service, especially military or other obligatory public service.
One exempted or freed from duty; one not subject.
One who has been released from something.
One who is exempted from an obligation, duty, or liability.
One of four officers of the Yeomen of the Royal Guard, having the rank of corporal; an Exon.

(of persons) freed from or not subject to an obligation or liability (as e.g. taxes) to which others or other things are subject
Freed from an obligation, duty, or liability to which others are subject; excused.
Not subject to certain federal workplace laws or protections, especially those requiring overtime compensation.
Set apart; isolated.
Cut off; set apart.
Extraordinary; exceptional.
Not entitled to overtime pay when working overtime.
Free from a duty or obligation.
(of goods or funds) not subject to taxation
Free, or released, from some liability to which others are subject; excepted from the operation or burden of some law; released; free; clear; privileged; -- (with from): not subject to; not liable to

To release or deliver from some liability which others are subject to; to except or excuse from he operation of a law; to grant immunity to; to free from obligation; to release
To remove; to set apart.
To set apart; isolate.
To free from an obligation, duty, or liability to which others are subject.

Exempted; having exemption; free or clear, as from subjection or liability to something disagreeable, onerous, or dangerous; dispensed: as, to be exempt from military duty; exempt from the jurisdiction of a court.
Removed; remote.
Standing apart; separated; select.
To free or permit to be free (from some undesirable requirement or condition); grant immunity (to); release; dispense: as, no man is exempted from pain and suffering.

Exemptions, Exemption, Unratable, Tax free, Duty free, Tax exempt, Let off, Excuse, Immune, Relieve, Privileged, Free, Untaxed, Excused, Nontaxable

Exemptions, Exemption, Unratable, Tax free, Tax exempt, Duty free, Let off, Excuse, Immune, Relieve, Privileged, Free, Untaxed, Excused, Nontaxable

Any proposed action exempt from filing for a development permit is also exempt from the standards of this ordinance.
Exempt Status and certify they are no longer providing professional engineering or land surveying services shall be exempt from the PDH units required.
Tax Exempt box to set a job as tax exempt.
Land may be exempt where contiguous to land on which exempt buildings are located.
Exempt composting facilities must comply with various performance standards in order to maintain their exempt status.
Unless a party in interest objects, the property claimed as exempt on such list is exempt.
Disabled drivers may also be exempt from vehicle tax and certain vehicles are exempt.
In so doing, those producers currently licensed and exempt would remain exempt.
Shipping and delivery charges for exempt sales are generally exempt.
However, charges to deliver exempt goods are generally exempt.

If early redemption may be at less than par, the issue may be unratable, unless we view the event triggering the redemption as remote.