Manufacture-origin requirement: cement exemption limited to cement made from clinker produced within same manufacturer's factory.
The amendment substitutes the proviso to limit eligible cement to that manufactured out of clinker produced within the same factory where the cement is made or within another factory of the same manufacturer where clinker production has commenced during the relevant period, thereby imposing a manufacture-origin requirement for clinker used to qualify for the notification's exemption.

Extension of Notification validity: expiry date substituted to extend the notification's operative period by one year.
The Central Government, satisfied in the public interest, amends the earlier notification by substituting the prior expiry date with a new expiry date, thereby extending the notification's period of validity for an additional year; this textual substitution alters only the notification's temporal scope and does not modify other substantive terms.

Exemption scope narrowed: amendment omits phrase 'in the repair or maintenance of machinery used', altering notification coverage.
The Central Government, under Section 5A(1) of the Central Excises and Salt Act, 1944, by Notification No. 234/88-C.E. dated 27-7-1988, amends Notification No. 182/87-C.E. (10-7-1987) by omitting the words "in the repair or maintenance of machinery used" from that notification.

Central Excise amendment narrows rule exceptions and exempts specific tariff goods from the rule's application explicitly.
The amendment to Rule 13 deletes a portion of sub rule (1), omits Explanation 1, and inserts a proviso that exempts fixed vegetable oils (sub heading 15.03), instant tea (Heading 21.01) and salt (sub heading 25.01) of the Tariff Schedule from the application of Rule 13, effective on publication under the power conferred by section 37.

Compounded levy amendment clarifies that duty leviable applies only if not already paid, conditioning textile fabric levies.
The Government amends the compounded levy notification for textile fabrics by inserting the words "if not already paid" after the phrase "duty leviable" in clause (1) of the proviso, thereby conditioning the duty charge on prior payment status.

Tariff classification amendment expands Annexure entries to add additional subheadings alongside the existing exemption code.
Amendment to Notification No. 175/86-C.E. substitutes the figures in the Annexure at Serial No. 2: the prior single tariff figure is replaced by an expanded set of tariff subheadings, thereby updating the classification codes referenced in that exemption entry under the Central Excises and Salt Act.

Excise duty exemption for copper coated steel strips limits liability above specified per tonne rate under tariff schedule.
The notification exempts copper coated steel strips under sub heading 7212.90 from excise duty to the extent that duty exceeds the amount computed at a specified per tonne rate, thereby capping excise liability for those goods and disallowing any scheduled duty above the stated per tonne amount.

Tariff classification amendment expands covered tariff headings by substituting additional item codes in excise notification.
Amendment revises the Annexure to the central excise notification by substituting the single referenced tariff code in Item 4, sub item (iii) with a specified set of four tariff headings, thereby altering the list of tariff numbers that determine the applicability of the notification under the miscellaneous exemptions framework.

Excise exemption for recycled precious and platinum group metals limits duty to value added in remanufacture.
Exempts catalysts, ingots, powder, sponge and compounds of specified metals when manufactured from used or spent catalysts or metal recovered from old or used articles, from central excise duty to the extent that such duty would exceed the amount calculated with reference only to the value of material added, if any, and the charge for such manufacture; covers items in Chapters 28, 38 and 71 and applies to gold, silver, platinum, palladium, rhodium, iridium, osmium and ruthenium.

Excise exemption caps duty on unglazed sintered clay tiles at a specified ad valorem rate, limiting payable tax.
Notification exempts unglazed sintered clay tiles under the relevant tariff heading from central excise duty to the extent that duty exceeds an amount calculated at a specified ad valorem rate, effected under statutory executive power and justified as necessary in the public interest.

Excise exemption for recycled precious metals limits duty to added-material value and re-processing charges.
Exemption limits excise duty on articles re-made or re-conditioned from old or used precious-metal articles to the duty corresponding to the value of material added and the charges for re-making or re-conditioning; duty in excess of that amount is not leviable. The scope covers specified metals and alloys in which a listed metal predominates or alloys meeting the gold-content threshold.

Excise exemption for low-capacity motorised two-wheelers caps duty at a specified ad valorem rate where value falls below threshold.
Motorised two-wheelers of engine capacity not exceeding 25 cubic centimetres under heading 87.11 are exempt from excise duty in excess of the amount calculated at the rate of 10 per cent ad valorem, provided the value per two-wheeler does not exceed the prescribed ceiling; "value" is as determined in accordance with the statutory valuation provisions applicable to central excise.

Principal Collector definition expands zonal authority and transfers certain procedural powers to Principal Collector under excise rules.
The amendment introduces a Principal Collector definition allocating specified collectors to West, South, East and North Zones, omits rule 8, replaces references to rule 8 with references to Section 5A of the Act in multiple provisions, and substitutes the term "the Central Government" with "the Principal Collector" in a specified rule, thereby reallocating certain procedural and supervisory excise functions to the Principal Collector.

Extension of notification validity: expiry date of specified central excise notification is postponed to a later specified date.
Amendment substitutes the expiry date in paragraph 2 of Notification No. 463/86-C.E., replacing the earlier specified date with a later specified date, thereby extending the notification's period of validity; the change is effected by Notification No. 226/88-C.E. issued under the powers of sub-rule (1) of rule 8 of the Central Excise Rules, 1944.

Commencement notification for customs and excise amendment law fixes the effective date, excluding specified sections from commencement.
The Central Government appointed 1 July 1988 as the commencement date for the Customs and Central Excises Laws (Amendment) Act, 1988. All provisions of the Act were brought into force on that date except Sections 4, 5, 11, 12 and 16, which were specifically left outside the commencement notification.

Tariff amendment adds phenol formaldehyde resins entry and extends the notification expiry, altering related tariff classification.
Notification No. 225/88 amends Notification No. 133/86-C.E. by inserting tariff item 3909.51 for Phenol formaldehyde resins with an ad valorem duty of twenty-five per cent and by substituting the previously specified expiry date in paragraph 2 with a later date; it also amends Notification No. 53/88-C.E. by omitting the figures 3909.51 from column (2) of S. No. 14 in its Table, under the authority of sub-rule (1) of rule 8 of the Central Excise Rules, 1944.

Exemption for unwrought zinc produced from duty-paid residues allowed subject to input duty paid and credit restrictions.
Exemption exempts unwrought zinc under heading No. 79.01 from excise duty where produced from zinc dross, zinc ash or residues on which excise or additional customs duty has already been paid, provided no duty credit has been taken on those inputs; the exemption does not apply to primary producers, and stocks of inputs are deemed duty-paid unless clearly recognisable as non-duty paid.

Excise duty exemption for specified castings and forgings limits duty to prescribed per tonne rates subject to permitted surface treatments.
Exemption limits excise duty on specified castings, cast articles and forgings under Chapters 73, 84, 85, 86 and 87 by permitting duty only up to prescribed per tonne rates for listed headings. The relief applies provided the goods have not been subjected to machining or surface treatments other than specified operations-certain heat treatments, descaling/pickling, protective coatings, sample removal for testing, and minor removal of defects or excess material-so long as there is no change in the form of the product.

Central excise exemptions amended to omit specified entries and refine permissible processing without changing product form.
Amendments delete specified table entries from two notifications, substitute an exception permitting removal of surface defects or excess material by grinding, chipping, filing or proof machining provided there is no change in the form of the product, and revise a notification to exclude pieces roughly shaped by forging from the definition of semi finished steel products while omitting cast steel articles from tariff coverage.

Exemption from excise duty for ammonium chloride and manganese sulphate when used as or to make fertilisers.
Exempts Ammonium Chloride and Manganese Sulphate in Chapter 28 from excise duty under sub rule (1) of rule 8, Central Excise Rules, 1944, when used as fertilisers or in the manufacture of fertilisers, but excludes substances clearly not intended for use as, or in the manufacture of, fertilisers; "Fertilisers" is defined by the Fertiliser (Control) Order, 1985.