Chwilio Deddfwriaeth

Canlyniadau Newidiadau i Ddeddfwriaeth

Mae eich chwiliad am newidiadau sy’n effeithio ar holl ddeddfwriaeth a wnaed gan Deddfau Cynulliad Gogledd Iwerddon yn 2008 rhifo 1 wedi dod o hyd i fwy na 200 o ganlyniadau:

Chwilio

Newidiadau sy’n effeithio ar:Changes that affect help
gwnaed gan:Made by help

Canlyniadau yn dangosResults showing help
Newidiadau sy’n effeithio arA wnaed gan
Sort by Deddfwriaeth wedi NewidSort by Trefnu fesul Blwyddyn a RhifDarpariaeth wedi NewidMath o effaithType of effect helpSort by Trefnu yn ôl Teitl Deddfwriaeth sy’n EffeithioSort by Trefnu fesul Blwyddyn a RhifDarpariaeth sy’n EffeithioSort by Newidiadau a wnaed i destun y wefanAmendment applied helpNodyn
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7s. 4C(5)(b)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 41(3)(a) Sch. 6 Pt. 7Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7s. 4C(5)(i)(j)repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 41(3)(c) Sch. 6 Pt. 7Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7s. 8(3)(c)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 42Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7s. 9(3)(c)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 43Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7Sch. 1 para. 1(3)(a)(b)repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 44(2)(a) Sch. 6 Pt. 7Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7Sch. 1 para. 1(3)(c)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 44(2)(b)Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7Sch. 1 para. 1(3)(d)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 44(2)(c)Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7Sch. 1 para. 1(6)(a)(b)repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 44(3) Sch. 6 Pt. 7Not yet
Social Security Contributions and Benefits (Northern Ireland) Act 19921992 c. 7Sch. 1 para. 1(9)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 44(4) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 22 cross-headingsubstitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 8See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 8 (6.4.2012) was repealed by 2008 c. 13 (N.I.), ss. 85(2)(b), 118(1), Sch. 10 Pt. 3 (with s. 73); S.R. 2012/119, art. 2(a)(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 6(3)(a)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 5See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 6 together with Sch. 4 para. 5 were repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 16(3)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 7See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 7 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 16(3)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 47 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 21AinsertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 9See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 9 together with the inserted s. 21A were repealed (6.4.2012) by 2008 c. 13 (N.I.), ss. 85(2)(b), 118(1), Sch. 10 Pt. 3 (with s. 73); S.R. 2012/119, art. 2(a)(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 23AinsertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 10See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 10 together with the inserted s. 23A were repealed (6.4.2012) by 2008 c. 13 (N.I.), ss. 85(2)(b), 118(1), Sch. 10 Pt. 3 (with s. 73); S.R. 2012/119, art. 2(a)(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 28AsubstitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 12See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 28A, together with Sch. 4 para. 12, were repealed (6.4.2012) by Pensions (No. 2) Act (Northern Ireland) 2008 (c. 13), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29word substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 13(2)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 13 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29 sidenotewords substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 13(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 13 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29A sidenotewords substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 14(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 29A together with Sch. 4 para. 14 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29A(1)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 14(2)(a)See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 29A together with Sch. 4 para. 14 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29A(1)(a)substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 14(2)(b)See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 29A together with Sch. 4 para. 14 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 29A(1)(b)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 14(2)(c)See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 29A together with Sch. 4 para. 14 repealed (6.4.2012) by 2008 c. 13 (N.I.), s. 118(1), Sch. 10 Pt. 3; S.R. 2012/119, art. 2(c)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 34 sidenotewords substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 16(4)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 16 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 34(1)substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 16(2)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 16 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 34(5)substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 16(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 16 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 36(b)repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 49 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 38ArepealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 50 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 39repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 51 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 41repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 52 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(1)words insertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(2)(a)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(1)(a)words insertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(2)(b)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(1)(b)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(2)(c)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(2)words insertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(4)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(4)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(4)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 54See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 54 repealed (6.4.2012) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 46(6)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 24(5)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 24 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 48(2)(a)words insertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 25(2)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 25 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 48(3)(a)words insertedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 25(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 25 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 64A(5)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 27See noteNote
CloseThis amendment not applied to legislation.gov.uk. S. 64A was repealed (6.4.2009) by 2008 c. 13 (N.I.), ss. 79, 118(1), Sch. 10 Pt. 2 (with s. 73); S.R. 2009/22, art. 2(2)(a)(d) and Sch. 4 para. 27 repealed (6.4.2009) by Pensions (No. 2) Act (Northern Ireland) 2008 (c. 13), ss. 116, 118(1), Sch. 10 Pt. 2; S.R. 2009/22, art. 2(2)(d)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 152 sidenotewords substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 30(3)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 30 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 152(1)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 30(2)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 30 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 160(2)substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 32See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 32 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 160(2)(b)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 55 Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 172(1)(a)repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 56(2)(b) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 172(1)(za)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 56(2)(a) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 172(2)(b)(ii)-(ix)substituted for s. 172(2)(b)(ii)Pensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 33See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 33 repealed immediately before the "abolition date" (see 2008 c. 1 (N.I.), s. 13) by S.R. 2012/124, art. 7(2)
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 172(7)(a)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 56(3) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 176(1)words repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 57(2) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49s. 176(4)word repealedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 57(3) Sch. 6 Pt. 7Not yet
Pension Schemes (Northern Ireland) Act 19931993 c. 49Sch. 3 para. 2(5)words substitutedPensions Act (Northern Ireland) 20082008 c. 1Sch. 4 para. 59(4)(b)See noteNote
CloseThis amendment not applied to legislation.gov.uk. Sch. 4 para. 59(4)(b)(c) is substituted (2.6.2012) by 2012 c. 3 (N.I.), ss. 25, 34(2)(c)

Yn ôl i’r brig

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Newidiadau a wnaed i destun y wefan

Defnyddiwch y cyfleuster hwn i chwilio am newidiadau sy’n effeithio ar un eitem o ddeddfwriaeth neu fwy yn seiliedig ar y meini prawf isod. Neu, gallech adael yr ochr hon o’r ffurflen yn wag i chwilio am y newidiadau ac effeithiau ar unrhyw ddeddfwriaeth ddiwygiedig.

  • Math o ddeddfwriaeth: Mae’r maes dewisol hwn yn caniatáu i chi gyfyngu eich chwiliad i newidiadau yn effeithio ar y math o ddeddfwriaeth y mae gennych ddiddordeb ynddo. Mae’r rhestr gwymp yn cynnwys y mathau hynny o ddeddfwriaeth ble mae gennym fersiynau diwygiedig ohonynt ar legislation.gov.uk.
  • Blwyddyn benodol/Ystod o flynyddoedd: Mae’r meysydd dewisol hyn yn caniatáu i chi gyfyngu eich chwiliad i newidiadau sy’n effeithio ar ddeddfwriaeth blwyddyn benodol neu dros ystod o flynyddoedd.
  • Rhif: Os ydych chi’n chwilio am newidiadau sy’n effeithio ar eitem benodol o ddeddfwriaeth, a’ch bod yn gwybod ei rif cyfresol, gallwch ei roi yn y maes rhif.
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A wnaed gan

Cyfyngwch eich chwiliad ar gyfer deddfwriaeth a newidiwyd trwy roi manylion ynglŷn â’r ddeddfwriaeth a wnaeth yr effeithiau hyn yn defnyddio’r ochr hon o’r ffurflen. Neu, gadewch yr ochr hon o’r ffurflen yn wag ar gyfer effeithiau a newidiadau a wnaed gan unrhyw ddeddfwriaeth.

  • Math o ddeddfwriaeth: Mae’r maes dewisol hwn yn caniatáu i chi gyfyngu eich chwiliad i’r math o ddeddfwriaeth y mae gennych ddiddordeb ynddo yn defnyddio’r blwch cwymplen.
  • Blwyddyn benodol/Ystod o flynyddoedd: Mae’r meysydd dewisol hyn yn caniatáu i chi gyfyngu eich chwiliad i newidiadau a wnaed gan ddeddfwriaeth mewn blwyddyn benodol neu dros ystod o flynyddoedd. Gair o gyngor: i chwilio ar gyfer yr holl newidiadau a wnaed gan yr holl ddeddfwriaeth mewn blwyddyn benodol, rhowch y flwyddyn ar yr ochr hon o’r ffurflen, gan adael yr ochr ‘Newidiadau sy’n effeithio’ yn wag.
  • Rhif: Os ydych chi’n chwilio am newidiadau a wnaed gan eitem benodol o ddeddfwriaeth, a’ch bod yn gwybod ei rif cyfresol, gallwch ei roi yn y maes rhif.
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Defnyddiwch y blychau ticio i weld naill ai:

  • Holl newidiadau: Yr holl newidiadau ac effeithiau sy’n cyd-fynd â’ch chwiliad
  • Newidiadau a weithredwyd: Y newidiadau ac effeithiau sy’n cyd-fynd â’ch meini prawf chwilio ac sydd wedi eu gweithredu i destun deddfwriaeth a gedwir ar y wefan hon gan dîm golygyddol legislation.gov.uk.
  • Newidiadau heb eu gweithredu: Y newidiadau ac effeithiau sy’n cyd-fynd â’ch meini prawf chwilio ond sydd heb eu gweithredu eto i destun deddfwriaeth a gedwir ar y wefan hon gan dîm golygyddol legislation.gov.uk.
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Newidiadau a wnaed i destun y wefan

Yn y golofn hon, mae 'Do' yn dynodi bod y newidiadau wedi eu gwneud i destun y ddeddfwriaeth ddiwygiedig ar y safle hwn gan dîm golygyddol legislation.gov.uk

Mae ‘Ddim eto’ yn dynodi nad yw’r newidiadau a’r effeithiau wedi eu gwneud i’r testun ar y wefan. Fodd bynnag, dangosir rhestr o’r newidiadau nad ydynt wedi’u gwneud ar y cyd â chynnwys deddfwriaeth ar lefel ddarpariaeth yn y blwch coch ‘Newidiadau i Ddeddfwriaeth’.

Mae ‘Ddim yn berthnasol (gweler nodyn)’ yn dynodi na fydd y newidiadau’n cael eu gwneud gan y tîm golygyddol. Bydd rhagor o wybodaeth yn egluro pam na fydd y newidiadau’n cael eu gwneud, yn cael eu cynnwys yn y golofn ‘Nodiadau’.

Pan fydd testun y ddeddfwriaeth ar gael yn Gymraeg ac yn Saesneg, gwneir y newidiadau i’r ddwy iaith ar wahân. Pan fydd newidiadau wedi eu gwneud i’r ddwy iaith bydd ‘Do’ wedi ei nodi yn y golofn hon.

Pan fydd newidiadau wedi eu gwneud i un iaith ond nid y llall, bydd y golofn hon yn dynodi pa newidiadau a wnaed a pha iaith sydd heb ei diweddaru.

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Math o effaith

Mae yna sawl math gwahanol o effaith. Gall “effaith” ddynodi unrhyw fodd ble mae deddfwriaeth yn effeithio ar neu’n newid deddfwriaeth arall. Mae yna dri phrif fath o effaith sy’n arwain at destun y ddeddfwriaeth yn newid: mewnosodiadau (ychwanegir testun), amnewidiad (mae’r testun yn cael amnewid) a diddymiad (ble nad oes gan y testun presennol effaith ac y gellir ei dynnu o’r ddeddfwriaeth). Yn ogystal, mae yna rai effeithiau a gofnodir gennym nad ydynt yn arwain at newid i destun y ddeddfwriaeth e.e. “Gweithredwyd” a ddefnyddir ble mae darpariaethau'r ddeddfwriaeth bresennol yn cael ei weithredu i ddeddfwriaeth newydd neu i gyfres o amgylchiadau a ddynodir yn y ddeddfwriaeth sy’n ei weithredu.