Customs duty exemption for specified waste imports limits chargeable duty to a capped ad valorem plus per kilogram amount.
The Central Government exempts waste falling under heading No. 55.05 of the First Schedule to the Customs Tariff Act from so much of the basic customs duty as is in excess of the amount calculated at a specified ad valorem rate plus a specified per kilogram charge, applying to imports into India.

Customs tariff amendment updates ad valorem rates and adds per-weight charge to specified exemption notifications.
The Central Government directs amendment of specified customs exemption notifications by substituting revised entries in the Table column (3): the 1978 notification's entry is replaced with "110% ad valorem"; the 1983 notification's Sl. No. 1 entry is replaced with "100% ad valorem plus a per kilogram charge" and Sl. No. 2 entry is replaced with "100% ad valorem".

Customs tariff amendment revises a specified percentage in an existing notification under section 25(1) of the Act.
An amendment substitutes "100%" for "105%" in Notification No. 67/90-Customs (Chapter 48), effected under the executive power vested by sub section (1) of section 25 of the Customs Act, 1962, the Central Government declaring the change necessary in the public interest and thereby altering the numeric rate in the earlier Ministry of Finance (Department of Revenue) notification.

Tariff exemption: amendment replaces a specified per tonne customs charge with nil for the specified chapter entry.
The Central Government amends Notification No. 31/82 Customs by substituting the previously specified per tonne charge in the annexed Table, against Serial No. 1 in column (3), with Nil, thereby removing the prior per tonne levy for that tariff entry.

Customs tariff exemption for specified sawn wood caps customs duty and removes additional duty for qualifying imports.
Exemption applies to sawn, chipped, sliced or peeled wood exceeding the one-inch thickness threshold under the relevant tariff classification, limiting customs duty to an ad valorem cap and exempting the whole additional duty under the Customs Tariff Act; it covers wood whether planed, sanded or finger-jointed and is granted under the Customs Act as a public-interest exemption.

Tariff heading amendment replaces dual heading reference with single heading and removes a corresponding table entry.
The Central Government, under section 25(1) of the Customs Act, 1962, amends Notification No. 58/90-Customs by substituting the opening paragraph's reference to two headings with heading No. 44.03 and by omitting S. No. 3 and its entries from the Table annexed to that notification.

Customs exemption for specified imported inputs permits reduced ad valorem duty for manufacture, subject to undertaking and compliance.
The Government exempts specified imported inputs-polyurethane films/foils, polyols and isocyanates-used for manufacture of listed goods from customs duty in excess of 35% ad valorem, provided the importer furnishes an undertaking to use the goods for the stated manufacture, maintain certified accounts of receipt and consumption at the place of manufacture, produce such accounts within three months or extended period, and pay on demand the difference between duty otherwise leviable and duty already paid if conditions are not complied with.

Tariff amendment adds polypropylene and propylene copolymers to an exemption notification, expanding customs coverage under tariff headings.
Amendment inserts polypropylene and copolymers of propylene into the opening paragraph of Notification No. 171/90-Customs, thereby expanding the exemption coverage under the existing tariff headings and integrating those polymer products into the notification's scope while leaving other provisions intact.

Ad valorem exemption rates revised for customs chapter goods, substituting prior higher rates with standardized lower rates.
The amendment substitutes the figures and words in column (4) of the Table annexed to Notification No. 49/90-Cus., replacing the ad valorem exemption rates against S. Nos. 04 and 06 and substituting new entries for S. Nos. 07-11 to specify revised ad valorem exemption rates for goods under Chapter 39 headings, including separate rates for polysulphones and other items under heading 39.11.

Customs exemption for specified botanical extracts caps customs duty at an ad valorem rate and exempts additional duty.
The Central Government exempts Wattle extract, Quebracho extract and Chestnut extract, when imported and falling under the Customs Tariff First Schedule heading for tannin extracts, from so much of the customs duty that exceeds the amount calculated at the rate of fifteen per cent ad valorem and from the whole of the additional duty leviable under section 3 of the Customs Tariff Act.

Customs duty rates revised to higher ad valorem levels for specified tariff headings, with differentiated rates for certain preparations.
Central Government amends prior customs exemption notifications by substituting specified entries in the annexed Tables with 100% ad valorem duty for listed items in Notifications 42/90-Cus. and 43/90-Cus. Notification 44/90-Cus. is amended by replacing its Table with a new schedule covering Chapter 34 headings, prescribing ad valorem rates by item: predominantly 100% ad valorem, with particular categories assigned lower ad valorem rates such as 70% ad valorem for organic surface active agents and 60% ad valorem for certain lubricating and other specified preparations.

Customs exemption for specified veterinary goods: duty relief and additional duty waiver conditioned on departmental certification for livestock breeding.
Government exempts specified Chapter 30 goods from customs duty in excess of the amount computed at the rate of 35 per cent ad valorem and from the whole of the additional duty under section 3 of the Customs Tariff Act, subject to certification by a Deputy Secretary-level officer in the Department of Animal Husbandry and Dairying that the goods are required for a livestock breeding programme and recommend the exemption.

Customs exemption amendments expand eligible chemical inputs for pharmaceutical manufacture, updating the notification's Table accordingly.
Amendment to a customs exemption notification updates the Table by substituting an ADCA entry, omitting a listed serial entry, and adding new serial entries that specify pharmaceutical products alongside the chemical intermediates, reagents and solvents eligible for exemption to permit manufacture of those listed drugs.

Customs exemption for specified chemical imports used in manufacture, conditioned on undertakings, certified accounts, and repayment on default.
Exemption for specified Chapter 28 or 29 imports used in the manufacture of listed downstream goods is conditional on an importer's undertaking that the imports will be used for the stated manufacture, that certified accounts of receipt and consumption at the place of manufacture will be maintained and produced within a prescribed period, and that the importer will pay on demand the duty difference if these conditions are not met; procedural oversight rests with the Assistant Collector of Customs.

Exemption from additional customs duty: specified Chapter 28 and 29 imports exempted under the customs tariff law.
The Central Government, exercising powers under the Customs Act, exempts the whole of the additional duty of customs leviable under the Customs Tariff Act on specified goods falling within Chapter 28 or Chapter 29 (Diethyl Carbamoyl chloride; Guanidine Hydrochloride; Cyanopyrazine) when imported into India, and supersedes earlier exemption notifications in the public interest.

Customs exemption expanded: a list of pharmaceutical and biochemical substances added to the tariff exemption notification.
The Central Government, exercising powers under the Customs Act, has amended the Table annexed to the existing customs exemption notification by adding a list of named pharmaceutical and biochemical substances, thereby extending exemption treatment under that notification to each listed item.

Customs exemption amendments update notifications to add chemical nomenclature, revise ad valorem rate, and list pharmaceuticals.
The instrument amends four customs exemption notifications by inserting an extended chemical denomination into Notification No. 11/86-Cus., substituting the ad valorem rate and inserting an "'L' Base" entry in Notification No. 271/86-Cus., adding Ribavirin and its capsules/syrup to the Table in Notification No. 213/88-Cus., and substituting the cited notification reference in the first proviso to Notification No. 296/88-Cus.

Amendment to customs exemption rates substitutes revised ad valorem tariff percentages in specified notifications.
The Central Government, under sub-section (1) of section 25 of the Customs Act, 1962, directs amendments to Notifications Nos. 386/86-Cus., 140/88-Cus. and 97/89-Cus. by substituting the figures and words denoting the ad valorem rates in each notification with the newly specified ad valorem figures, thereby modifying the tariff exemption rates set out in those notifications.

Customs tariff amendments update exempted chemical and pesticide entries and revise ad valorem duty rates under statutory power.
Amendments modify six earlier customs exemption and tariff notifications under section 25(1) of the Customs Act by adding specified chemical and pesticide items to their Schedules and Tables and by substituting revised ad valorem duty entries in specified notifications, with precise insertion points and substitutions set out against the identified notifications.

Duty exemption for specified leather preservative imports waives excess basic duty above set rate and the additional duty.
The Government exempts specified leather preservative chemicals (TCMTB, PCMC and formulations containing them) imported for use in the leather industry from basic customs duty to the extent the duty exceeds an ad valorem ceiling and from the whole of the additional duty under the customs tariff law. The concession is conditional on the importer producing a certificate from a designated officer in the Ministry of Commerce stating the description and quantity of each chemical and recommending the exemption.